The document provides instructions for installing a Nissan Frontier sliding bed extender kit. The kit allows a bed extender to function with roll-up truck bed covers. The instructions are in 5 steps and include removing the existing bed extender and carriage brackets, replacing carriage bracket hardware with new longer pieces, reassembling the brackets and inserting the extender, and adjusting the safety straps. Diagrams illustrate the assembly parts and process.

1. NISSAN FRONTIER SLIDING BED
EXTENDER KIT #40575 (INSTRUCTIONS)
The installation of this kit allows the bed extender to
function with the roll-up cover kits #317 and #318
TOOLS NEEDED:
a) #5 mm allen wrench
b) #13 mm socket wrench
c) T-20 torx wrench
d) protective eyewear
Remove bed extender from cage
1 from carriage brackets. Measure
LOOSEN THESE CLIPS
and record width of cage. Use
#20 Torx to loosen retainer clips
on tubes and pry loose. Then
slide telescopic tubes together- to
make extender narrower by 4
inches -from original width. Re-
tighten torx bolts and set unit off
to side.
ILLUSTRATION 1
Remove carriage bracket by loos-
2 ening thumbwheel and sliding to
front of box until assembly comes
out of track system.
Carriage Bracket
ILLUSTRATION 2
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©2008 Agri-Cover, Inc. All Rights Reserved Part No. 40539RevB 042508

2. Disassemble carriage bracket hardware and save existing pieces - except Carriage Replace both carriage brackets
3 Slide Block with short bolt -for reassembly as per diagram in Illustration 3. Insert
4 at front of box and slide to rear.
new long bolt with lock washer into new metal slide block and tighten with jam nut. Mount bed extender to brackets.
Then use new pieces with existing pieces and reassemble with 2 inch spacer tube as Make sure the stop block at rear
shown. Tape spacer tube end plugs in place. Repeat procedure for carriage bracket of track is tight to prevent bed ex-
on other side. tender from sliding too far back.
Stop
Spacer tube Block
Existing carriage slide
end plug
block with short bolt is
not used with this kit
New jam nut
Existing washer New square
ILLUSTRATION 4
metal slide block
New 8mm x 85mm
Thumb wheel bolt with lock washer
Rotate bed extender to set on tail-
Existing nut
5 gate and adjust length of safety
New bolt 5/16 x 3/4 Existing roller straps to fit tailgate latch. Check
bed extender for proper operation
New flat washer Existing sleeve and check all bolts to ensure they Strap attached
to bracket
are tight.
Existing button head bolt
New spacer tube
New lock washer and nut
Carriage bracket
ILLUSTRATION 5
ILLUSTRATION 3 - TOP VIEW OF CARRIAGE BRACKET
(PASSENGER SIDE)
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