Wilwood caliper piston knock-back springs available in .77/1.22 OD x 1.00 size to address pedal low issues caused by piston knock back from vibration or chassis flex. Specific 1.22" diameter parts are noted for use with Wilwood stainless pistons in certain diameter ranges; installers should verify piston compatibility and check for required relief cuts before ordering.
Wilwood Caliper Piston Spring .77/1.22 ODx1.00