Installation Guide

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PAGE 3
Choose 10 holes, identified by the
black dots, that correspond with
your individual vehicle configuration.
Front of truck
Row 1 Row 2 Row 3 Row 4
Rear edge of truck bed
Installation continues on the following page
Each base rail must have a bolt in
either of the marked holes. Check
for obstructions before drilling.
Measure diagonally from
the same reference point.
Measurements should be
the same each way.
Rear edge of the truck bed to
the rear edge of the base rail.
Step 1
The following instructions should be used to mount the base rails.
Raise the rear of the truck high enough to allow jack stands to be
placed under the rear spring hanger bracket. This will provide the
maximum amount of space to install the 5th wheel brackets.
WARNING: If the truck is raised, ensure it is properly blocked and
restrained to prevent it from falling. Failure to do so may result in the
truck falling suddenly, causing death or serious injury.
Step 2
Center the 5th wheel hitch between the fender wells and make
sure the base rails are square. Adjust the position of the rails until
both diagonal measurements are the same. This should allow the
installation of a gooseneck or 5th wheel hitch to these rails.
INSTALLATION
CAUTION
It is important to use a 17/32" drill bit for holes in the chassis frame.
The rib neck bolts may break if too small of a hole is drilled. The rib
neck bolts may not grip if too large of a hole is drilled.
Drill locations will vary per application.
See individual sheets for specific drill locations.
Diagonal measurements must be the same to
ensure smooth operation of 5th wheel roller units.
Use the mounting channel / cross member assembly
to position the base rails, sold separately.
WARNING
Do not lubricate bolt threads. This may cause bolt failure.
Check for obstructions prior to drilling. Failure to do so could result in
damaged fuel or brake lines, structural members, etc.
If the truck is raised, ensure it is properly blocked and restrained to
prevent it from falling. Failure to do so may result in the truck falling
suddenly, causing death or serious injury.