Wahl Bros Racing Anti-Stab Wheel Kits - 8 3/4in. Shaft - Centered 02-791A Use to keep the track from contacting rail tips Available in two styles; centered or split Centered kits are for suspensions with offset or dual limiter straps Split wheel kit are for suspensions with centered limiter straps It is necessary to install an anti-stab wheel kit when shortening the suspension rail or removing the rail tip protectors