Front Disc Brake Spindles

they also have a quick change upgrade that bolts their aluminum calipers to stock 72 and earlier disc spindles. if the 4 pistons sit awhile, they can develop rust in the piston bores due to moisture developing in the brake fluid. my buddy got replacements by raybestos(either#rc4176 or rwc4407 for left and rc4175 or rwc4406 for the right), hopefully still available.