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INSTALLATION GUIDE
60 minutes
Normal Install Time
PARTS INCLUDED:
Cab & T Panels Assembly
Tailgate Panel
TOOLS REQUIRED:
Drill
3/8" Nut Driver
PREPARE THE CARGO BED & POSITION THE COVER
Attach the clamp bracket to the bulkhead, centered side to side and flush
1
with the top rail, using a drill, 3/8" nut driver bit, and four self-drilling screws.
Installing the clamp bracket is easiest
if you pre-drill it using the screws.
Use four screws to attach a lock rod striker
2
bracket to each front corner of the cargo bed, the
bracket's V bend pointing rearward and its side
screw flange located as high as possible without
it breaking the plane of the top of the bed rail.
It's OK for the V bend to break the
plane of the top of the bed rail.
If you are also installing a Cross Bin, do so now. Refer to page 2 of the
3
Cross Bin Installation Guide for details.
Turn the lock handle back to the closed position so that the lock rods pass
6
underneath the bed rails. Close the tailgate.
Center the DiamondBack
7
side to side.
Keep an eye out for these icons:
Edge Trim (2)
Gas Springs (6)
Cap Clamps (6)
Ratchet Wrench
9/16" Socket
IMPORTANT!
Important installation information
Bed Rail
Clamp Bracket
7/16" Socket
1/8" Hex Key
Place the cab & T panels
4
assembly on the front half of
the bed so its leading edge
lines up with the leading edge
of the bulkhead.
To avoid hinge damage, do not close the
panel until hinges are fully mated: Tilt the
panel past 90° and push to the left until the
hinge locking tabs interlock and the hinge
barrels are aligned with the leaves.
Place two cap clamps as far apart as possible at each of the three
8
ends of the T panel. Tighten with a 9/16" socket.
Retighten your clamps after 100 miles.
Helpful Hints
Tips to assist installation
Lock Rod
Self-Drilling Screws (12)
Striker Brackets
PRE INSTALLATION
NOTES:
If your truck has bed rail
caps, you should affix the
included bulkhead prep kit
prior to installing the
DiamondBack 270. Refer to
the Bulkhead Prep Kit
Installation Guide for
details.
Tape Measure
Slide the tailgate panel onto the T panel by mating
5
their hinges. Close the tailgate panel slowly while
holding the lock handle in the open position.
CONTINUED ON OTHER SIDE
Mating hinges is
easiest when you
line up the longer,
left hinge pin first.
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