2011 GMC Sierra Miami FL- Brickell Buick & GMC

REFERENCE GUIDE
2011 GMC SIERRA HEAVY DUTIES
PROFESSIONAL GRADE
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Preproduction model shown. Actual production model may vary.
Brickell Buick & GMC
665 SW 8th Street
Miami, FL 33130
(786) 245-4889
http://www.brickellgmc.com/

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2011 GMC SIERRA HEAVY DUTY REFERENCE GUIDE
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PROFESSIONAL GRADE. NO COMPROMISE.
HERE COME THE NEW 2011 SIERRA HEAVY DUTIES.
Product information is preliminary. Production models may vary.
GMC engineers never stop exceeding expectations. This philosophy holds true with the new Sierra Heavy
Duty (HD) lineup – a big-time example of engineering excellence with no compromise.
ALL-NEW CHASSIS AND FRAME THAT DELIVER outstanding CAPABILITY AND RIDE
Sierra HD has been reengineered from the ground up to provide excellent trailering and payload – one
of the top reasons customers seek out heavy-duty trucks. In fact, Sierra HD provides segment-leading
payload in the most popular HD model: the 4x4 3/4-ton Crew Cab (see page 4.)
segment-leading POWER WITH A NEW DURAMAX®
DIESEL ENGINE AND ALLISON®
TRANSMISSION
This powertrain combination has a proven track record with nearly 1.3 million sold in the last decade.
Here’s to millions more - GMC has made it quieter and more powerful than before. Additionally it is now
B20 biodiesel compatible. Under the hood, 397 hp and 765 lb.-ft. of torque make the new Duramax the
most powerful diesel in the segment.
NEW CONTROL FEATURES FOR CONFIDENCE WITH HEAVY LOADS
The ultimate workhorse truck provides the utmost confidence to manage the heaviest of loads. The new
Sierra HD lineup has it all covered with an array of control features.
BEST WARRANTY in the segment
No one can match the GMC powertrain limited warranty – plus you get courtesy transportation and
roadside assistance.
AN EXCLUSIVE DENALI HD MODEL
GMC is extending its exclusive Denali line to the Sierra Heavy Duty lineup – a first-time HD offering of
Denali’s unique combination of distinctive style, premium features and capability.
This guide will help you explore all that is new for the 2011 model year and what makes these trucks a
cut above the rest. Watch for the new 2011 Sierra HD lineup to be in showrooms in late Spring. For more
information, be sure to visit GMC.com/SierraHD.
DID YOU KNOW? GMC has
built trucks for 108 years ...
since 1902.

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New, High-Strength,
Fully Boxed Steel Frame
New, More Robust
Independent Front
Suspension
New, Asymmetrical Rear
Leaf Spring SuspensionLarger BrakesLarger Brakes
REBUILT FROM THE GROUND UP.
GMC engineers focused on continual improvement and engineering excellence when building the 2011 Sierra Heavy Duty.
F E AT U R E I M P R O V E M E N T S B E N E F I T
New, High-Strength, Fully Boxed
Steel Frame
Beaming stiffness increased 20%
Frame strength increased 92%
Torsional stiffness increased by five times
A more rigid and durable platform that allows
better suspension tuning and better ride
quality by reducing frame bending
and twisting.
New, More Robust Independent
Front Suspension
Larger, stronger parts
Larger engine and transmission mounts to
control vibrations
Stronger and lighter upper control arms
Cast iron lower control arms to handle
more load
Improved ride and handling with greater
isolation and better tire-to-ground contact.
Up to a 25% increased front axle rating
on vehicles equipped with available Snow
Plow Prep package.
Facilitates a snowplow package on all 4WD
cab and engine combinations.
New, Asymmetrical Rear Leaf
Spring Suspension
Increased in size by 20%
Larger fasteners to handle increased loads
Urethane jounce bumpers to improve
energy management
New hydraulic body mounts to dampen
road inputs (Extended and Crew Cabs)
Improved to handle increased loads and
provide excellent launch feel and ride
characteristics.
Larger Brakes Rotor diameter is now 14" (9% larger) Improved brake pedal feel and shorter
pedal travel.
DID YOU KNOW? Despite most chassis
components growing in weight and
strength, GMC engineers found a way
to improve diesel fuel efficiency for the
2011 model year.*
* Based on GM testing

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C O M PA R E T H E H I G H E S T S E L L I N G M O D E L S I N T H E H D M A R K E T
( 3 / 4 - T O N C R E W 4 x 4 )
2011 GMC
SIERRA 2500HD
2011 FORD
F-250
MAXIMUM CONVENTIONAL TRAILERING (GAS)1
13,000 LBS. 12,500 LBS.
MAXIMUM FIFTH-WHEEL TRAILERING (GAS)1
13,900 LBS. 15,000 LBS.
MAXIMUM CONVENTIONAL TRAILERING (DIESEL)1
13,000 LBS. 14,000 LBS.
MAXIMUM FIFTH-WHEEL TRAILERING (DIESEL)1
16,700 LBS. 15,700 LBS.
MAXIMUM PAYLOAD (GAS)2
3,375 LBS. 2,790 LBS.
MAXIMUM GVWR3
10,000 LBS. 10,000 LBS.
MAXIMUM GCWR3
24,500 LBS. 23,500 LBS.
T H E R E S U LT S
A maximum 16,000 lbs. conventional trailering capability1
A maximum 20,000 lbs. fifth-wheel-trailering capability1
A maximum 6,335 lbs. payload capacity2
Maximum Front Gross Axle Weight Rating of 6,000 lbs. on select 4WD models w/available Snowplow Package (a 25% increase)3
ON THE OUTSIDE: The 2011 Sierra HD
brings a new lineup of available 17-,
18- and 20-inch* wheels. In addition,
features like the available EZ Lift
tailgate and 170-degree-opening rear
access doors (Extended Cab models)
can help get the job done.
EXTERIOR COLORS:
Midnight Blue Metallic
Onyx Black
Stealth Gray Metallic
Summit White
Fire Red
Storm Gray Metallic
Pure Silver Metallic
Gray Green Metallic NEW!
*
Use only GM approved wheel and tire combinations.
1
Maximum trailer ratings are calculated assuming standard equipped vehicle, driver, and required trailering equipment. The weight of option equipment,
passengers, and cargo will reduce the maximum trailer weight your vehicle can tow. 10% to 15% of the trailer weight is the recommended trailer tongue load.
2
Maximum payload capacity includes weight of driver, passengers, optional equipment, and cargo.
3
When properly equipped; includes weight of vehicle, passengers, cargo, and equipment.

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A NEW DURAMAX DIESEL®
AND ALLISON®
TRANSMISSION:
the most-powerful diesel in its class.
It’s the available Sierra HD combination that’s known for getting the toughest jobs accomplished.
Now it’s improved and stronger than ever, ready to make the toughest jobs on the toughest
days even easier. With nearly 1.3M Duramax 6.6L engines sold since 2000, they are proven
and dependable.
LARGER FUEL TANK WITH UP TO 680-MILE HIGHWAY RANGE1
SEGMENT-BEST HORSEPOWER (397@3,000 rpm)
SEGMENT-BEST TORQUE (765@1,600 rpm)
0-TO-60 TIME IMPROVED BY 13%
DEVELOPED FOR AT LEAST 200,000-MILE DURABILITY
B20 BIODIESEL COMPATIBLE
IMPROVED HIGHWAY FUEL EFFICIENCY1
65% LOWER EMISSIONS
MEETS 2010 FEDERAL EMISSIONS STANDARDS
NEW ALLISON TRANSMISSION: BUILT-UP AND BATTLE-READY
It’s already a legend. And it’s been beefed up to handle more
torque and provide better efficiency. Not to mention it’s the
same brand of transmission used in M1 tanks. How’s that
for battling the toughest jobs? For the 2011 model year, the
Allison 1000 six-speed automatic transmission includes:
■■ Driver Shift Control (DSC) with Tap-Up/Tap-Down shifting
■■ Tow/Haul Mode
■■ Automatic grade braking to slow your Sierra HD on
downhill grades while helping to reduce brake wear
■■ Power takeoff
■■ A larger-diameter output shaft
■■ More robust clutches
■■ Two overdrive gears for efficiency
IMPROVED RANGE AND REDUCED FILL-
UPS: Sierra HD (long box or standard
box) has a larger 36 gallon fuel tank
with capacity increased by 38 percent.
Combined with an 11% improvement
in fuel efficiency1
– you could go up to
680 highway miles between fill-ups in a
Duramax-equipped Sierra HD.
2 0 1 1 G M C
S I E R R A H D
D I E S E L
2 0 1 1 F O R D
S U P E R D U T Y
D I E S E L
2 0 1 0 D O D G E
R A M H D
D I E S E L
TOW/HAUL MODE STANDARD STANDARD AVAILABLE
TAP-UP/TAP-DOWN
CAPABILITY ON AUTOMATIC
TRANSMISSION
STANDARD STANDARD AVAILABLE
B20 BIODIESEL CAPABILITY STANDARD STANDARD AVAILABLE
AUTOMATIC LOCKING REAR
DIFFERENTIAL
AVAILABLE NOT AVAILABLE NOT AVAILABLE
1
Based on GM testing

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DID YOU KNOW: GMC now offers
a Sierra 3500 Crew Cab with a
standard box (6.5’) and a 2WD
Sierra 3500 Long Box Regular Cab
available in a dually configuration.
TOOLS TO MANAGE THE HEAVIEST LOADS.
TOOLS FOR YOUR MOBILE OFFICE.
Sierra HD’s offer an array of tools to help you stay in control and put in a confident day’s work.
Inside, they reflect the professional grade blend of refinement and functionality for which GMC
is known.
F E AT U R E what it does
StabiliTrak®
Electronic Stability Control (all
2500HD and single-rear-wheel 3500HD models)
Uses a combination of braking and engine management to help improve vehicle
stability, particularly during emergency maneuvers.
Hill Start Assist
(on all single-rear-wheel configurations)
Uses vehicle and trailer brakes to keep Sierra HD and/or a trailer from rolling
backward when launching on an incline. The brakes apply for approximately 1.5
seconds to allow the driver to move foot from brake pedal to accelerator pedal
without any vehicle movement.
Trailer Sway Control
(on all single-rear-wheel configurations)
Works with StabiliTrak to determine if the trailer is swaying and applies the
brakes/trailer brakes. It also can reduce engine power to bring both the vehicle
and trailer under control.
Four-wheel ABS with larger, four-wheel disc
foundation brakes and Intelligent Brake Assist
Intelligent Brake Assist senses an urgent braking situation via the driver’s
application of the brake pedal then applies full braking capability without full
travel of the brake pedal.
OnStar®
with six months of
Directions Connections Plan
standard on most models.1
Offers the convenience of hands-free calling and includes Automatic Crash
Response, Stolen Vehicle Assistance, Emergency Services, Roadside Assistance,
Remote Horn and Lights and more.
XM®
Radio2
(with 3-month trial)
Commercial-free music channels from virtually every genre, live performances,
sports, entertainment, compelling talk, world news, local traffic and more – all in
crisp, clear digital sound.
USB connectivity3
Personalize your driving experience – the USB port recharges your iPod®
/MP3
player while it plays audio from the device through the sound system.
Bluetooth®
for phone4
Provides in-vehicle, hands-free operation with a Bluetooth-equipped cell phone.
Steering-wheel-mounted controls let you start a call and control volume, then dial
by voice and listen to your call through the audio system.
“Smart” Exhaust Brake
(standard on Duramax®
-equipped models)
Helps reduce brake fade while prolonging brake life. Provides confidence when
hauling heavy loads on downhill grades. This system is “smart” and varies the
amount of braking needed based on the truck load and grade.
Available WiFi (via dealer-installed Autonet Mobile)5
Connect to the Internet inside your Sierra HD.
Available integrated trailer brake controller Dash-mounted controls provide a measured brake force signal to
electric-controlled trailer brakes.
Available seat pelvic/thorax and head curtain
side air bags6
(2500HD models)
Protection in the event of a collision.
Available Rearview
Camera System
A rear camera image is displayed in the rearview mirror or on the navigation
system screen to assist visibility when backing up or when connecting to a trailer.
2 0 1 1 G M C
S I E R R A H D
D I E S E L
2 0 1 1 F O R D
S U P E R D U T Y
D I E S E L
2 0 1 0 D O D G E
R A M H D
D I E S E L
POWERTRAIN
LIMITED WARRANTY
100,000 MILES/
5 YEARS7
100,000 MILES/
5 YEARS
100,000 MILES/
5 YEARS
ROADSIDE
ASSISTANCE
100,000 MILES/
5 YEARS
60,000 MILES/
5 YEARS
NOT AVAILABLE
COURTESY
TRANSPORTATION
100,000 MILES/
5 YEARS
NOT AVAILABLE NOT AVAILABLE
1
Optional in Work Trucks. Visit onstar.com for coverage map or call 1-888-466-7827 for system limitations and details. Services vary by model and conditions.
2
XM Radio requires a subscription, sold separately after the first 90 days. Not available in Alaska or Hawaii. For more information, visit gm.xmradio.com.
3
Not compatible with all devices.
4
Go to gm.com/bluetooth to see which phones are compatible with each vehicle.
5
Monthly rate applies. Visit autonetmobile.com for details and coverage map.
6
Always use safety belts and the correct child restraints for your child’s age and size. Even in vehicles equipped with air bags and the Passenger Sensing System, children are safer when properly secured in a rear seat. Never place a rear-facing infant restraint
in the front seat of any vehicle equipped with an active frontal air bag. See the vehicle’s Owner’s Manual and child safety seat instructions for more safety information.
7
Whichever comes first. See dealer for details.

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SIERRA HEAVY DUTY JOINS THE EXCLUSIVE DENALI FAMILY.
GMC is extending its exclusive Denali line to include Sierra Heavy Duty. Premium features and styling meet the ultimate
in capability. Sierra Denali HD is offered exclusively in a Crew Cab standard box configuration on the 2500HD chassis
with a spacious cabin (room for up to five people). Sierra Denali HD includes the exclusive features listed below:
S I E R R A D E N A L I H D E X T E R I O R
G M C S I E R R A D E N A L I H D
( V O RT E C V 8 )
Gross Vehicle Weight Rating up to 9,500 lbs.4
Maximum Payload of up to 2,959 lbs.5
Conventional Trailering up to 13,000 lbs.6
Fifth-Wheel Trailering up to 13,700 lbs.6
Gross Combined Weight Rating up to 20,500 lbs.4
G M C S I E R R A D E N A L I H D
( D U R A M A X D I E S E L )
Gross Vehicle Weight Rating up to 10,000 lbs.4
Maximum Payload of up to 2,631 lbs.5
Conventional Trailering up to 13,000 lbs.6
Fifth-Wheel Trailering up to 15,600 lbs.6
Gross Combined Weight Rating up to 24,500 lbs.4
EXTERIOR COLORS:
Black
Stealth Gray
White
S I E R R A D E N A L I H D I N T E R I O R
Inside, the sophistication is evident with the distinctive Denali interior setting, functional
features and technology. In addition to available features like heated and cooled front seats,
the following features come standard:
■■ 12-way power driver and front passenger seats
■■ Power adjustable pedals
■■ Bose®
Premium Surround Audio System
■■ OnStar®
with six months of Directions Connections1
■■ XM®
Radio with three month trial2
■■ Bluetooth®
for phone3
T H E S A M E O U T S TA N D I N G H D C A PA B I L I T Y
Sierra Denali HD brings the great capability you would expect of a Heavy Duty Sierra.
Denali Trademark
Honeycomb Grille
Available 20-inch*
Forged, Polished
Aluminum Wheels
Chrome-Accent
Bodyside MoldingsDenali Chrome Badge
Body-Color
Bumpers
Chrome Door Handles
*
Use only GM approved wheel and tire combinations.
1
Visit onstar.com for system limitations and details.
2
XM Radio requires a subscription, sold separately after the first 90 days. Not available in Alaska or Hawaii. For more information, visit gm.xmradio.com.
3
Go to gm.com/bluetooth to see which phones are compatible with each vehicle.
4
5
6
Maximum trailer ratings are calculated assuming standard equipped vehicle, driver, and required trailering equipment. The weight of option equipment, passengers, and cargo will reduce the maximum trailer weight your vehicle can tow. 10% to 15% of the
trailer weight is the recommended trailer tongue load.

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2011 GMC SIERRA HEAVY DUTY 2500HD and denali SPECIFICATIONS
2011 GMC SIERRA HEAVY DUTY | SPECIFICATIONS
2 0 1 1 S I E R R A 2 5 0 0 H D
O verview
Models: 2500HD reg. cab, long box, 2WD 4WD
2500HD ext. cab, std. box, 2WD 4WD
2500HD ext. cab, long box, 2WD 4WD
2500HD crew cab, std. box, 2WD 4WD
2500HD crew cab, long box, 2WD 4WD
2500HD Denali crew cab std. box, 4WD
Body style/driveline: 2-3 passenger regular cab or 5-6 passenger extended cab,
5-6-passenger crew cab
3/4-ton; 2- and 4-wheel-drive heavy-duty pickup
Construction: body on frame
EPA vehicle class: full-size truck
Manufacturing location: Flint, Mich.; Ft. Wayne, Ind.
E ngines
V ortec ™ 6 . 0 L
V 8 ( L 9 6 )
D urama x ®
6 . 6 L T urbo
D iesel V 8 ( L M L )
Type: 6.0L V8 6.6L V8
Displacement (cu.in./cc): 364/5,967 403/6,599
Bore stroke (in./mm): 4.00 x 3.62/101.6 x 92 4.06 x 3.9/103 x 99
Block material: cast iron cast iron
Cylinder head material: cast aluminum cast aluminum
Valvetrain: overhead valve, two valves per cylinder,
variable valve timing
overhead valve, four valves per cylinder
Ignition system: coil-near-plug, platinum-tipped spark
plugs, low-resistance spark plug wires
compression, glow plug start aid
Fuel delivery: sequential fuel injection direct-injection diesel with high-pressure
common rail
Compression ratio: 9.6:1 16.0:1
Horsepower (hp/kW @ rpm): 360@5,400 397/296@3,000
Torque (lb.-ft./Nm @ rpm): 380/515@4,200 765/1037@1,600
Recommended fuel: regular unleaded diesel or B20
Maximum engine speed (rpm): 6000 3000
Emissions controls: three-way catalytic converter, positive
crankcase ventilation, evaporative
collection system
cooled exhaust gas recirculation (EGR),
EGR cooling-bypass system, diesel
particulate filter system (DPF), selective
catalyst reduction (SCR)

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T ransmissions
H ydra - M atic ®
6 L 9 0 A llison 1 0 0 0
Type : six-speed automatic (with Vortec™ 6.0L) six-speed automatic (with Duramax®
6.6L)
G ear ratios ( : 1 ) :
First: 4.03 3.10
Second: 2.36 1.81
Third: 1.53 1.41
Fourth: 1.15 1.00
Fifth: 0.85 0.71
Sixth: 0.67 0.61
Reverse: 3.06 4.49
Final drive ratio: 3.73 or 4.10 3.73
C hassis / S uspension
Front: all models: std. long- and short-arm independent
front torsion bar suspension
Rear: 4+1 multi-leaf springs
Steering type: integral power-assisted recirculating ball
Steering ratio: 16.1
Steering wheel turns, lock-to-lock: 3.57
T urning C ircle
R egular C ab E x tended C ab C rew C ab
Turning circle, curb-to-curb
(ft./m):
std. box: 44.9/13.7
long box: N/A
std. box: 47.9/14.6
long box: 51.8/15.8
std. box: 50.5/15.4
long box: 54.8/16.7
B rakes
Type: power-assisted, Hydroboost brake-apply system,
four-wheel disc, four-wheel ABS
Rotor diameter x thickness (in./mm): front: 13.97 x 1.57/355 x 40
rear: 14.17 x 1.34/360 x 34
Total swept area (sq. in./sq. cm): front: 277.7/1,791
rear: 277.5/1,790
W heels / T ires
Wheel size and type: 17 x 7.5-in. steel
17 x 7.5-in. aluminum
Tire size: LT245/75R17 all-season
LT265/70R17 all-terrain
LT265/70R18 all-season
LT265/60R20 all-terrain

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E x terior D imensions
R egular C ab
L ong B o x
E x tended
C ab
S tandard
B o x
E x tended
C ab
L ong B o x
C rew C ab
S tandard
B o x
C rew C ab
L ong B o x
Wheelbase
(in./mm):
133.6/3,395.4 144.1/3,662.4 158.1/4,017.4 153.7/3,904.4 167.7/4,259.4
Overall length
(in./mm):
225/5,716 230.6/5,858 249.5/6,338 240.1/6,100 259/6,580
Overall width
(in./mm):
80/2,032 80/2,032 80/2,032 80/2,032 80/2,032
Overall height:
(in./mm):
77.5/1,970.5 77.8/1,977.6 77.6/1,971 78.3/1,989.5 78/1,983
Track – front
(in./mm):
68.8/1,748 68.8/1,748 68.8/1,748 68.8/1,748 68.8/1,748
Track – rear
(in./mm):
67.3/1,709 67.3/1,709 67.3/1,709 67.3/1,709 67.3/1,709
Min. ground
clearance – 2WD
(in./mm):
front: 9.8/249
rear: 9.1/232
front: 9.8/249
rear: 8.5/217
front: 9.7/248
rear: 8.4/215
front: 9.7/248
rear: 8.3/213
front: 9.7/248
rear: 8.2/210
Min. ground
clearance – 4WD
(in./mm):
front: 9.7/248
rear: 9.1/231
front: 9.7/248
rear: 8.5/216
front: 9.7/247
rear: 8.4/214
front: 9.7/247
rear: 8.2/209
front: 9.7/247
rear: 8.2/208
Step-in height
(in./mm):
26.3/668 26.2/665 26/662 26/661 25.9/658
W eight ratings
G V W R
( lb S . / kg )
C urb W eight
( lb S . / kg )
Payload
( lb S . / kg )
Reg. cab, long box (2WD): 6.0L: 9,300/4,218
6.6L: 9,900/4,490
6.0L: 5,596/2,538
6.6L: 6,475/2,937
6.0L: 3,704/1,680
6.6L: 3,425/1,553
Reg. cab, long box (4WD): 6.0L: 9,500/4,309
6.6L: 9,900/4,490
6.0L: 5,920/2,685
6.6L: 6,775/3,073
6.0L: 3,580/1,624
6.6L: 3,126/1,418
Ext. cab, std. box (2WD): 6.0L: 9,500/4,309
6.6L: 10,000/4,536
6.0L: 5,995/2,719
6.6L: 6,795/3,082
6.0L: 3,506/1,590
6.6L: 3,205/1,453
Ext. cab, std. box (4WD): 6.0L: 9,500/4,309
6.6L: 10,000/4,536
6.0L: 6,278/2,847
6.6L: 7,105/3,222
6.0L: 3,222/1,461
6.6L: 2,895/1,313
Ext. cab, long box (2WD): 6.0L: 9,500/4,309
6.6L: 10,000/4,536
6.0L: 6,096/2,765
6.6L: 6,927/3,142
6.0L: 3,404/1,544
6.6L: 3,073/1,394
Ext cab, long box (4WD): 6.0L: 9,500/4,309
6.6L: 10,000/4,536
6.0L: 6,371/2,890
6.6L: 7,235/3,281
6.0L: 3,130/1,419
6.6L: 2,765/1,254
Crew cab, std. box (2WD): 6.0L: 9,500/4,309
6.6L: 10,000/4,536
6.0L: 6,115/2,773
6.6L: 6,907/3,133
6.0L: 3,385/1,535
6.6L: 3,094/1,403
Crew cab, std. box (4WD): 6.0L: 9,500/4,173
6.6L: 10,000/4,173
6.0L: 6,377/2,892
6.6L: 7,208/3,269
6.0L: 3,123/1,416
6.6L: 2,792/1,266
Crew cab, long box (2WD): 6.0L: 9,500/4,173
6.6L: 10,000/4,536
6.0L: 6,208/2,816
6.6L: 7,058/3,201
6.0L: 3,292/1,493
6.6L: 2,942/1,334
Crew cab, long box (4WD): 6.0L: 9,900/4,490
6.6L: 10,000/4,173
6.0L: 6,525/2,959
6.6L: 7,387/3,350
6.0L: 3,375/1,531
6.6L: 2,613/1,185

11
• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •
• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •
C apacities
Seating: 2/3 5/6 5/6
Fuel tank – 2WD and 4WD
(gal./L):
36/136 36/136 36/136
Engine oil (qt./L): 6.0L: 6.0/5.7
6.6L: 10/9.5
6.0L: 6.0/5.7
6.6L: 10/9.5
6.0L: 6.0/5.7
6.6L: 10/9.5
Cooling system (qt./L): 6.0L: 16.4/15.5
6.6L: 25.4/24
6.0L: 16.4/15.5
6.6L: 25.4/24
6.0L: 16.4/15.5
6.6L: 25.4/24
C argo bo x
S tandard B o x L ong B o x
Cargo volume1
(cu. ft./L): 60.7/1,718 75.5/2,138
Length at floor (in./mm): 78.8/2,003 97.7/2,483
Width at floor (in./mm): 62.4/1,586 62.4/1,586
Tailgate width (in./mm): 61.5/1,564 61.5/1,564
Width between wheel housings (in./mm): 50.6/1,286 50.6/1,286
Inside height (in./mm): 21/533 21/533
I nterior
Headroom (in./mm):
41.2/1,048
front: 41.1/1,044
rear: 39.4/1,002
front: 41.2/1,048
rear: 40.5/1,030
Legroom (in./mm):
41.3/1,049
front: 41.3/1,049
rear: 34.3/872
front: 41.3/1,049
rear: 39/991
Shoulder room (in./mm):
65.2/1,657
front: 65.2/1,657
rear: 65.3/1,658
front: 65.2/1,657
rear: 65.1/1,655
Hip room (in./mm):
60.3/1,532
front: 60.3/1,532
rear: 61.8/1,571
front: 60.3/1,532
rear: 65.4/1,663
1
Cargo capacity limited by weight distribution.

12
• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •
• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •
T railering
T railer towing ma x imum
with ball hitch
( lbs . / kg ) 1
with fifth - wheel hitch
( lbs . / kg ) 1
Reg. cab, long box: 2WD w/ 6.0L (4.10 axle): 13,000/5,897
2WD w/ 6.6L (3.73 axle): 13,000/5,897
4WD w/ 6.0L (4.10 axle): 13,000/5,897
4WD w/ 6.6L (3.73 axle): 13,000/5,897
2WD w/ 6.0L (4.10 axle): 14,700/6,668
2WD w/ 6.6L (3.73 axle): 17,800/8,074
4WD w/ 6.0L (4.10 axle): 14,400/6,531
4WD w/ 6.6L (3.73 axle): 17,500/7,938
Ext. cab, std. box: 2WD w/ 6.0L (4.10 axle): 13,000/5,897
2WD w/ 6.6L (3.73 axle): 13,000/5,897
4WD w/ 6.0L (4.10 axle): 13,000/5,897
4WD w/ 6.6L (3.73 axle): 13,000/5,897
2WD w/ 6.0L (4.10 axle): 14,300/6,486
2WD w/ 6.6L (3.73 axle): 17,500/7,938
4WD w/ 6.0L (4.10 axle): 14,000/6,350
4WD w/ 6.6L (3.73 axle): 17,200/7,801
Ext. cab, long box: 2WD w/ 6.0L (4.10 axle): 13,000/5,897
2WD w/ 6.6L (3.73 axle): 13,000/5,897
4WD w/ 6.0L (4.10 axle): 13,000/5,897
4WD w/ 6.6L (3.73 axle): 13,000/5,897
2WD w/ 6.0L (4.10 axle): 14,200/6,441
2WD w/ 6.6L (3.73 axle): 17,400/7,892
4WD w/ 6.0L (4.10 axle): 13,900/6,304
4WD w/ 6.6L (3.73 axle): 16,500/7,484
Crew cab, std. box: 2WD w/ 6.0L (4.10 axle): 13,000/5,897
2WD w/ 6.6L (3.73 axle): 13,000/5,897
4WD w/ 6.0L (4.10 axle): 13,000/5,897
4WD w/ 6.6L (3.73 axle): 13,000/5,897
2WD w/ 6.0L (4.10 axle): 14,200/6,441
2WD w/ 6.6L (3.73 axle): 17,400/7,892
4WD w/ 6.0L (4.10 axle): 13,900/6,304
4WD w/ 6.6L (3.73 axle): 16,700/7,575
Sierra Denali HD: 4WD w/ 6.0L (3.73 axle): 9,300/4,218
4WD w/ 6.0L (4.10 axle): 13,000/5,897
4WD w/ 6.6L (3.73 axle): 13,000/5,897
4WD w/ 6.0L (3.73 axle): 9,300/4,218
4WD w/ 6.0L (4.10 axle): 13,700/6,214
4WD w/ 6.6L (3.73 axle): 15,600/7,076
Crew cab, long box: 2WD w/ 6.0L (4.10 axle): 13,000/5,897
2WD w/ 6.6L (3.73 axle): 13,000/5,897
4WD w/ 6.0L (4.10 axle): 13,000/5,897
4WD w/ 6.6L (3.73 axle): 13,000/5,897
2WD w/ 6.0L (4.10 axle): 14,100/6,395
2WD w/ 6.6L (3.73 axle): 17,200/7,801
4WD w/ 6.0L (4.10 axle): 13,800/6,259
4WD w/ 6.6L (3.73 axle): 15,600/7,076
SAE certified.
Note: Information shown is current at time of publication.
1
Maximum trailer ratings are calculated assuming standard equipped vehicle, driver, and required trailering equipment. The weight of option equipment, passengers, and cargo will reduce the maximum trailer weight your
vehicle can tow. 10% to 15% of the trailer weight is the recommended trailer tongue load.

13
• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •
• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •
2011 GMC SIERRA HEAVY DUTY | SPECIFICATIONS
2 0 1 1 S I E R R A 3 5 0 0 H D
O verview
Models: 3500HD reg. cab, long box, 2WD 4WD
3500HD ext. cab, long box, 2WD 4WD
3500HD crew cab, long box, 2WD 4WD
3500HD crew cab, std. box, 2WD 4WD
Body style/driveline: 2-3 passenger regular cab or 5-6 passenger extended cab,
5-6-passenger crew cab
1-ton; 2- and 4-wheel-drive heavy-duty pickup
Construction: body on frame
EPA vehicle class: full-size truck
Manufacturing location: Flint, Mich.; Ft. Wayne, Ind.
E ngines
V ortec ™ 6 . 0 L
V 8 ( L 9 6 )
D urama x ®
6 . 6 L T urbo
D iesel V 8 ( L M L )
Type: 6.0L V8 6.6L V8
Displacement (cu.in./cc): 364/5,967 403/6,599
Bore stroke (in./mm): 4.00 x 3.62/101.6 x 92 4.06 x 3.9/103 x 99
Block material: cast iron cast iron
Cylinder head material: cast aluminum cast aluminum
Valvetrain: overhead valve, two valves per cylinder,
variable valve timing
overhead valve, four valves per cylinder
Ignition system: coil-near-plug, platinum-tipped spark
plugs, low-resistance spark plug wires
compression, glow plug start aid
Fuel delivery: sequential fuel injection direct-injection diesel with high-pressure
common rail
Compression ratio: 9.6:1 16.0:1
Horsepower (hp/kW @ rpm): 360/268@5,400 397/296@3,000
Torque (lb.-ft./Nm @ rpm) : 380/515@4,200 765/1037@1,600
Recommended fuel: regular unleaded diesel or B20
Maximum engine speed (rpm): 6000 3000
Emissions controls: three-way catalytic converter, positive
crankcase ventilation, evaporative
collection system
cooled exhaust gas recirculation (EGR),
EGR cooling-bypass system, diesel
particulate filter system (DPF), selective
catalyst reduction (SCR)
2011 GMC SIERRA HEAVY DUTY 3500HD SPECIFICATIONS

14
• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •
• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •
T ransmissions
H ydra - M atic ®
6 L 9 0 A llison 1 0 0 0
Type : six-speed automatic (with Vortec™ 6.0L) six-speed automatic (with Duramax®
6.6L)
G ear ratios ( : 1 ) :
First: 4.03 3.10
Second: 2.36 1.81
Third: 1.53 1.41
Fourth: 1.15 1.00
Fifth: 0.85 0.71
Sixth: 0.67 0.61
Reverse: 3.06 4.49
Final drive ratio: 3.73 or 4.10 3.73
C hassis / S uspension
Front: all models: std. long- and short-arm independent
front torsion bar suspension
Rear: 4+1+2(SRW) or 3+1+2(Dually) multi-leaf springs
Steering type: integral power-assisted recirculating ball
Steering ratio: 16.1
Steering wheel turns, lock-to-lock: 3.57
B rakes
Type: power-assisted, Hydroboost brake-apply system,
four-wheel disc, four-wheel ABS
Rotor diameter x thickness (in./mm): front: 13.97 x 1.57/355 x 40
rear: 13.97 x 1.57/355 x 40
Total swept area (sq. in./sq. cm): front: 278/1793
rear: 278/1793
W heels / T ires
Wheel size and type
Single rear wheels: 18 x 8.0-in. steel
Dual rear wheels: 17 x 6.5-in. steel
Tire size
Single rear wheels: LT265/70R18 all-season or all-terrain
Dual rear wheels: LT235/80R17 all-season or all-terrain
T urning C ircle
R egular C ab
L ong B o x
E x tended C ab
L ong B o x
C rew C ab
L ong B o x
C rew C ab
S td . B o x
Turning circle,
curb-to-curb (ft./m):
SRW: 44.9/13.7
DRW: 45.6/13.9
SRW: 51.8/15.8
DRW: 52.8/16.1
SRW: 54.8/16.7
DRW: 55.4/16.9
SRW: 50.5/15.4
DRW: N/A

15
• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •
• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •
E x terior dimensions
R egular C ab
L ong B o x
E x tended C ab
L ong B o x
C rew C ab
S td . B o x
C rew C ab
L ong B o x
Wheelbase
(in./mm):
133.6/3,395.4 158.1/4,017.4 153.7/3,904.4 167.7/4,259.4
Overall length
(in./mm):
225/5,716 249.5/6,338 240.1/6,100 259/6,580
Overall width
(in./mm):
95.9/2,436 95.9/2,436 80/2,032 95.9/2,436
Overall height
(in./mm):
2WD: 77.3/1,965
4WD: 77.2/1,962
2WD: 77.4/1,966
4WD: 77.3/1,963
2WD: 77.4/1,966
4WD: 77.4/1,966
2WD: 77.8/1,977
4WD: 77.8/1,977
Track – front w/single rear
wheels (in./mm):
68.8/1,748 68.8/1,748 68.8/1,748 68.8/1,748
Track – rear w/single rear
wheels (in./mm):
67.3/1,709 67.3/1,709 67.3/1,709 67.3/1,709
Track – rear w/dual rear
wheels (in./mm):
75/1,906 75/1,906 75/1,906 75/1,906
Minimum ground clearance
– 2WD (in./mm):
front: 9.9/252.2
rear: 8.8/224
front: 9.6/246
rear: 8.6/219.5
front: 10/255.4
rear: 8.4/213.3
front: 9.6/245
rear: 8.5/215
Minimum ground clearance
– 4WD (in./mm):
front: 9.9/252
rear: 8.6/218
front: 9.6/244.5
rear: 8.4/214.5
front: 9.9/253.5
rear: 8.4/214.4
front: 9.6/244
rear: 8.5/215
Step-in height
(in./mm):
26/660 25.8/655 25.2/642 25.4/647

16
• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •
• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •
W eight ratings
G V W R
( lb S . / kg ) 1
C urb W eight
( lb S . / kg )
Payload
( lb S . / kg ) 2
Reg. cab, long box (2WD)
with single rear wheels:
6.0L: 10,400/4,717
6.6L: N/A
6.0L: 5,808/2,634
6.6L: N/A
6.0L: 4,592/2,083
6.6L: N/A
with dual rear wheels:
6.0L: 12,500/5,670
6.6L: N/A
6.0L: 6,165/2,796
6.6L: N/A
6.0L: 6,335/2,873
6.6L: N/A
6.0L: 10,700/4,853
6.6L: 11,400/5,171
6.0L: 6,134/2,782
6.6L: 6,919/3,138
6.0L: 4,566/2,071
6.6L: 4,481/2,032
6.0L: 12,800/5,806
6.6L: 13,000/5,897
6.0L: 6,492/2,944
6.6L: 7,277/3,301
6.0L: 6,308/2,861
6.6L: 5,724/2,596
Ext. cab, long box (2WD)
6.0L: 10,700/4,853
6.6L: 11,200/5,080
6.0L: 6,303/2,859
6.6L: 6,991/3,171
6.0L: 4,397/1,994
6.6L: 4,209/1,909
6.0L: 13,000/5,897
6.6L: 13,000/5,897
6.0L: 6,668/3,024
6.6L: 7,460/3,384
6.0L: 6,332/2,872
6.6L: 5,540/2,513
6.0L: 11,000/4,989
6.6L: 11,600/5,261
6.0L: 6,580/2,984
6.6L: 7,377/3,346
6.0L: 4,420/2,005
6.6L: 4,223/1,915
6.0L: 13,000/5,897
6.6L: 13,000/5,897
6.0L: 6,945/3,150
6.6L: 7,742/3,511
6.0L: 6,055/2,746
6.6L: 5,258/2,385
Crew cab, long box (2WD)
6.0L: 10,700/4,853
6.6L: 11,400/5,171
6.0L: 6,414/2,909
6.6L: 6,984/3,168
6.0L: 4,286/1,944
6.6L: 4,416/2,003
6.0L: 13,000/5,897
6.6L: 13,000/5,897
6.0L: 6,777/3,074
6.6L: 7,544/3,422
6.0L: 6,223/2,822
6.6L: 5,456/2,475
6.0L: 11,000/4,989
6.6L: 11,600/5,261
6.0L: 6,732/3,053
6.6L: 7,516/3,409
6.0L: 4,268/1,936
6.6L: 4,085/1,853
6.0L: 13,000/5,897
6.6L: 13,000/5,897
6.0L: 7,095/3,218
6.6L: 7,878/3,573
6.0L: 5,905/2,678
6.6L: 5,122/2,323
Crew cab, std. box (2WD)
6.0L: 10,500/4,762
6.6L: 11,100/5,034
6.0L: 6,300/2,857
6.6L: 7,063/3,203
6.0L: 4,200/1,905
6.6L: 4,038/1,831
Crew cab, std. box (4WD)
6.0L: 10,800/4,899
6.6L: 11,500/5,216
6.0L: 6,573/2,981
6.6L: 7,335/3,327
6.0L: 4,227/1,917
6.6L: 4,165/1,889
1
2

17
• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •
• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •
C argo bo x
S tandard B o x L ong B o x
Cargo volume1
(cu. ft./L): 60.7/1,718 75.5/2,138
Length at floor (in./mm): 78.8/2,003 97.7/2,483
Width at floor (in./mm): 62.4/1,586 62.4/1,586
Tailgate width (in./mm): 61.5/1,564 61.5/1,564
Width between wheel housings (in./mm): 50.6/1,286 50.6/1,286
Inside height (in./mm): 21/533 21/533
I nterior
Headroom (in./mm):
41.2/1,048
front: 41.1/1,044
rear: 39.4/1,002
front: 41.2/1,048
rear: 40.5/1,030
Legroom (in./mm):
41.3/1,049
front: 41.3/1,049
rear: 34.3/ 872
front: 41.3/1,049
rear: 39/ 991
Shoulder room (in./mm):
65.2/1,657
front: 65.2/1,657
rear: 65.3/1,658
front: 65.2/1,657
rear: 65.1/1,655
Hip room (in./mm):
60.3/1,532
front: 60.3/1,532
rear: 61.8/1,571
front: 60.3/1,532
rear: 65.4/1,663
C apacities
Seating: 2/3 5/6 5/6
Fuel tank (gal./L): 36/136 36/136 36/136
Engine oil (qt./L): 6.0L: 6.0/5.7
6.6L: 10/9.5
6.0L: 6.0/5.7
6.6L: 10/9.5
6.0L: 6.0/5.7
6.6L: 10/9.5
Cooling system (qt./L): 6.0L: 16.4/15.5
6.6L: 25.4/24
6.0L: 16.4/15.5
6.6L: 25.4/24
6.0L: 16.4/15.5
6.6L: 25.4/24
1
Cargo capacity limited by weight distribution.

18
• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •
• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •
T railering
with ball hitch
( lb . / kg ) 1
with fifth - wheel hitch
( lb . / kg ) 1
Reg. cab, long box
2WD w/ 6.0L (4.10 axle): 13,000/5,897
4WD w/ 6.0L (4.10 axle): 13,000/5,897
4WD w/ 6.6L (3.73 axle): 13,000/5,897
2WD w/ 6.0L (4.10 axle): 14,500/6,577
4WD w/ 6.0L (4.10 axle): 14,200/6,441
4WD w/ 6.6L (3.73 axle): 17,400/7,892
Reg. cab, long box
2WD w/ 6.0L (4.10 axle): 14,100/6,395
4WD w/ 6.0L (4.10 axle): 13,800/6,259
4WD w/ 6.6L (3.73 axle): 16,000/7,257
2WD w/ 6.0L (4.10 axle): 14,100/6,395
4WD w/ 6.0L (4.10 axle): 13,800/6,259
4WD w/ 6.6L (3.73 axle): 20,000/9,072
Ext. cab, long box
2WD w/ 6.0L (4.10 axle): 13,000/5,897
2WD w/ 6.6L (3.73 axle): 13,000/5,897
4WD w/ 6.0L (4.10 axle): 13,000/5,897
4WD w/ 6.6L (3.73 axle): 13,000/5,897
2WD w/ 6.0L (4.10 axle): 14,000/6,350
2WD w/ 6.6L (3.73 axle): 17,300/7,847
4WD w/ 6.0L (4.10 axle): 13,700/6,214
4WD w/ 6.6L (3.73 axle): 16,900/7,665
Ext. cab, long box
2WD w/ 6.0L (4.10 axle): 13,600/6,169
2WD w/ 6.6L (3.73 axle): 16,000/7,257
4WD w/ 6.0L (3.73 axle): 13,400/6,078
4WD w/ 6.6L (3.73 axle): 16,000/7,257
2WD w/ 6.0L (4.10 axle): 13,600/6,169
2WD w/ 6.6L (3.73 axle): 19,800/8,981
4WD w/ 6.0L (3.73 axle): 13,400/6,078
4WD w/ 6.6L (3.73 axle): 19,600/8,909
Crew cab, long box
2WD w/ 6.0L (4.10 axle): 13,000/5,897
2WD w/ 6.6L (3.73 axle): 13,000/5,897
4WD w/ 6.0L (4.10 axle): 13,000/5,897
4WD w/ 6.6L (3.73 axle): 13,000/5,897
2WD w/ 6.0L (4.10 axle): 13,900/6,318
2WD w/ 6.6L (3.73 axle): 17,300/7,863
4WD w/ 6.0L (4.10 axle): 13,600/6,181
4WD w/ 6.6L (3.73 axle): 16,800/7,636
Crew cab, long box
2WD w/ 6.0L (4.10 axle): 13,500/6,123
2WD w/ 6.6L (3.73 axle): 16,000/7,257
4WD w/ 6.0L (4.10 axle): 13,200/5,987
4WD w/ 6.6L (3.73 axle): 16,000/7,257
2WD w/ 6.0L (4.10 axle): 13,500/6,136
2WD w/ 6.6L (3.73 axle): 19,800/9,000
4WD w/ 6.0L (4.10 axle): 13,200/6,000
4WD w/ 6.6L (3.73 axle): 19,400/8,818
Crew cab, std. cab
with single rear wheels
2WD w/ 6.0L (4.10 axle): 13,000/5,897
2WD w/ 6.6L (3.73 axle): 13,000/5,897
4WD w/ 6.0L (4.10 axle): 13,000/5,897
4WD w/ 6.6L (3.73 axle): 13,000/5,897
2WD w/ 6.0L (4.10 axle): 14,000/6,363
2WD w/ 6.6L (3.73 axle): 17,200/7,818
4WD w/ 6.0L (4.10 axle): 13,700/6,214
4WD w/ 6.6L (3.73 axle): 17,000/7,727
SAE certified.
Note: Information shown is current at time of publication.
1
Maximum trailer ratings are calculated assuming standard equipped vehicle, driver, and required trailering equipment. The weight of option equipment, passengers, and cargo will reduce the maximum trailer weight your
vehicle can tow. 10% to 15% of the trailer weight is the recommended trailer tongue load.

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