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Husky 33139 Assembly, Installation, Operation And Maintenance Instructions page 3

Base rail bracket kit

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CAUTION:
DO NOT install mounting rails over plastic bed liners. Plastic bed liners must be cut out of the way.
Base rails may be installed on dry/cured spray in liner. Note: Consult installer for recommended curing
time.
DO NOT install this kit on truck with less than 6' bed.
Use only the supplied bolts, nuts, and washers to install this kit. All nuts and bolts are Grade 5 unless specified
otherwise.
These instructions are guidelines only. Actual installation is the responsibility of the installer and
the owner. Always measure truck and trailer before installing hitch to be sure that there is clearance at
the cab and at the bumper to allow for turns.
The following instructions should be used to mount the fifth wheel. Care and attention to detail will ensure a quick
quality installation. Check parts against parts list to become familiar with parts in kit.
1. The wheel well liners will need to be removed to access the frame for bracket installation.
2. Place the two bed rails across the truck bed between the wheel wells. Securely attach the 5th wheel cross 
member to uprights. Position the 5th wheel uprights between the bed rails so that the tabs in the base of each 
upright will fit into the slots in the bed rails. Secure the uprights in place with the rail hitch pins and hair pins 
supplied with the 5th wheel installation kit 
3.   On most applications, the 5th wheel assembly should be positioned so that it is approximately 
centered over the truck axle ( in this case ahead of axle) and between the wheel wells on the bed floor.
4.   Position the bed rail assembly in truck bed as shown on the Illustrationtration "B" on page 3 of this instruction 
sheet. When hitch is correctly positioned in the bed and the bed rails are parallel, mark four attachment points 
on the truck bed using the 5/8" square holes indicated on the layout Illustrationtration as guides. Check below 
the bed before drilling holes to see that all wiring, brake lines, or other obstructions are moved out of the way 
and will not be contacted by the drill. Move the hitch assembly out of the way and drill four 5/8" diameter 
holes down through the bed at the previously marked points.
Check for obstructions before drilling. Failure to do so could result in damaged fuel or brake lines ,
structural members, etc. HUSKY TOWING PRODUCTS does its best to communicate tow vehicle
manufacturer changes; however, it is ultimately the responsibility of the installer to prevent damage
All Products limited to Vehicle Tow Rating, see Vehicle Owners Manual.  Visit www.huskytow.com for Warranty Information/ 
Tech Support.  ©2018 LKQ Specialty Products Group. All Rights Reserved .  July  25, 2018‐Rev3         Page‐3
due to installation.

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