Rev. B 0808
BestRail
™
Ladder Rack Installation Instructions
42792 / 42795 pg. 3
Push the Ladder Extension End Caps into the
ends of the Ladder Rail Assembly.
Install End Caps
Assemble BestRail™ Ladder
Rails to BestRail™ Ladder
Extensions
Place a BestRail™ Ladder Extension Insert in the
End of each BestRail™ Ladder Rail. Line up the
holes.
Slide a BestRail™ Ladder Extension over the Insert
and align the holes.
Install a 5/16-18 x 1.25" Button Head Cap Screw
and 5/16" Washer in each hole. Tighten with a
3/16" Allen Wrench.
Install Ladder Rack T-Bolts
and Extension T-Bolts
Orient the Ladder Rail Assemblies with the Ladder
Extensions toward the front of the vehicle.
Slide two (2) Overhead Rack Ladder T-Bolts into the
3" wide side channel that will face out from the vehicle.
Slide two (2) Overhead Rack Extension T-Bolts into
the 2" channel that will face down.
Make sure that you do not slide any T-Bolts into the
channel with the Button Head Cap Screws installed
in Step 1.
BestRail™ Ladder
Extension Insert
BestRail™
Ladder Rail
5/16-18 x 1.25" Button
Head Cap Screws with
5/16" Washers
BestRail™
Ladder Rail
BestRail™ Ladder
Extension
BestRail™
Ladder Rail
Overhead Rack
Ladder T-Bolts
Overhead Rack
Extension T-Bolts
BestRail™
Ladder Rail
Ladder
Extension
End Cap
This side will
face outside
of vehicle
2"
2"
3"
5/16-18 x 1.25" Button
Head Cap Screw
5/16" Washer