AFCO's Detented Weight Jack System eliminates the need for a jam nut; which allows for fast wedge adjustments on a pit stop or during chassis setup. The stainless steel ball and spring lock the plate from turning under race conditions to prevent unwanted chassis changes on the track. The special ball-ended jack bolt and its accomodating cupped spring plate seat help eliminate spring-to-jack bolt misalignment and spring binding during normal suspension travel.
NOTE: Jack bolt and frame plate must be used together in order for detent system to be functional.
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