Installation Guide
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PAGE 2
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ASSEMBLY
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READ THE FOLLOWING BEFORE BEGINNING THE INSTALLATION
Do not install the base rails over plastic bed liners. Plastic bed liners must be cut out of the
way. Base rails may be installed on a spray liner. Consult an installer for curing times.
Only use the provided grade 8 bolts, nuts and washers for installation.
All installation hardware is grade 8 unless otherwise specified.
Specific instructions for common vehicles are included. If these instructions do not apply
to your vehicle, be sure that each end of each base rail is connected to the vehicle's frame.
Each frame bracket must be secured with two bolts unless optional weld is used.
WARNING: This installation manual is only a guideline. The installation is the responsibility
of the installer and the owner. Always measure the truck and trailer before installing the hitch
to ensure there is clearance at the cab and bumper to allow for turns.
To prevent the trailer from hitting the cab when turned 90°, the center of the hitch should be at
least 52" from the back of the cab when using a long bed truck. The actual distance will depend
on the trailer width and king pin location. Short bed (38" minimum from the back cab to the
axle center line) trucks require a minimum of a 13" extended pin box for regular maneuvers.
52" does not apply.
For most applications, measurements are given from the rear edge of the truck bed to the rear
edge of the mounting rail that is closest to the rear edge of truck. See the illustration on page 3.
Parts List
# Qty Description
1 2 Base rail
2 1 Long mounting bracket, right
3 1 Short mounting bracket, right
4 1 Short mounting bracket, left
5 1 Long mounting bracket, left
6 10 U-shaped spacer, 5/16"
7 8 Ribbed neck bolt,
1/2" - 13 x 1-1/2"
8 10 Carriage bolt, 1/2" - 13 x 2"
9 18 Lock washer, 1/2"
10 18 Hex nut, 1/2" - 13
11 10 Flat washer, 1/2"
12 2 Round hole spacer,
1/2" x 1-1/4" x 2-1/2"
13 2 Carriage bolt, 1/2" - 13 x 4-1/2"
14 2 Round tube spacer,
1" OD x 14 GA, A-513
15 1 Fish wire