Reese 66151-66158 TRUNNION BAR W_SWAY CONTROL User Manual
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66151IN-051712 REV F
PCN17221
©2012 TOWING PRODUCTS, INC
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NOTE: Propane bottles, batteries, etc. may obstruct installation of
the frame brackets to the trailer frame. The frame brackets can be
located within the following specified range from coupler ball center
to the center of pad the hanger:
Chart 1
600# Range = 18” to 27”
800# Range = 20” to 27”
1200# Range = 24” to 30”
1500# Range = 28” to 30”
See Fig. 6
Fig. 6
INITIAL SETUP
•Line up the tow vehicle and trailer on level pavement, in straight-ahead position, uncoupled.
•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 a ball with an 1-1/4” or 1” threaded shank that is V-5
rated equal to or greater than the trailer gross vehicle weight rating (GVWR).
WARNING: Raised balls usually have reduced load ratings. Ball rating MUST be equal to
or exceed the trailer GVWR.
•Attach hitch ball to the ballmount (A) shown in Fig. 1. Standard height hitch balls with 1-1/4”
shanks are typically supplied with lock washers and nuts. If a 1” shank ball is used, use reducer
bushing (B) to reduce hole size in the ballmount to 1”. If using an 1-1/4” shank ball on 600 or 800
lb kits, the supplied 1-1/4” flat washer (AC) may be used between the ball and the ball mount to
space the ball upward slightly to prevent trunnion interference during a sharp turn. Always use a
lock washer and place the washer between the nut and ballmount. Unless otherwise specified by
the ball manufacturer, torque ball nut to 450 ft*lbs for 1-1/4” nuts and 250 ft*lbs for 1” nuts.
Fig. 5