CURT Replacement TruTrack Weight Distribution Hitch Spring Bar, 10K Model 17536CURT Replacement TruTrack Weight Distribution Hitch Spring Bar, 10K Model 17536 While many weight distribution hitches are made to be compatible with a sway control attachment, the CURT TruTrack is an advanced WD system that integrates the sway control function into the design of the hitch. It combines precise weight distributing with integrated sway control to deliver the smoothest, safest ride possible. This, coupled with one of the easiest setups