You are thinking anti sway attachment on a hitch. Sway or anti,roll bars are on front suspension and on some vehicles on the rear. Look under your pickup in the front. There is a bar attached to the frame and each end is connected to each side of the front end by the wheels. Helps prevent body lean in turns. Anti sway is to add resistance to side to side movement of a tt through the hitch using friction.
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2012 SunSeeker 3100SS Toad-1962 Futura Average 100 + days camping
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