Pro Series 49587 TRUNNION WD - Manual

49585IN-15946 REV G ©2007 TOWING PRODUCTS, INC
For Installation Assistance or Technical Help, Call 1-888-521-0510
INSTALLATION INSTRUCTIONS
PLYMOUTH, MI.
Trunnion Style
Weight Distributing Kits
DEALERS: Give these instructions to your customers.
SIZING WD AND TRAILER HITCH SYSTEMS
1.
Refer to provided Consumer Information to weigh loaded trailer tongue to determine proper system size.
2.
Choose a system with tongue rating at or above the actual trailer tongue weight.
3.
Tongue rating of trailer hitch must meet or exceed measured tongue weight of trailer. OEM hitches may not be rigid
enough for tongue weight and may need to be replaced (too much flex and won’t carry load).
4.
Total trailer gross weight rating must never exceed tow vehicle rated gross tow rating.
INITIAL SET-UP
1.
Line up tow vehicle and trailer on level pavement, in straight-ahead position, uncoupled.
2.
Level the trailer. Measure and record the distance from the ground to the top of the coupler (Fig.1, page 2).
3.
Select a hitch ball with a diameter that matches the trailer coupler size. The three most common sizes are 1-7/8", 2",
and 2-5/16". Select ball with 1-1/4" or 1" threaded shank that is V-5 rated equal to or greater than trailer gross vehicle
weight rating (GVWR).
WARNING: Raised balls usually have reduced load ratings. Ball rating MUST equal or exceed trailer GVWR.
4.
Attach hitch ball to the ballmount (A). Standard height hitch balls with 1-1/4" shanks are supplied with lockwashers and
nuts (If you must use a 1” shank ball, use the provided 58184 bushing (B) to reduce hole size in ballmount (A) to 1”).
Always use a lockwasher and place between the ballmount and nut. Unless otherwise specified by ball manufacturer
torque ball nut to 450 ft/lbs for 1-1/4" nut, 250 ft/lbs for 1" nut.
5.
Some installations may require a longer draw bar (C). Extended bumper guards, pickup truck "caps", or rear mounted
spare tires can limit turn angles unless a longer bar is used. Individual draw bars (C) are available in various sizes.
49585
49586
49587