Review on ACDelco 45G15393 Professional Spring Bushing by Sam Bhushan

My 04 GM Pickup. All GM pickups and 99-08 SUVs use the same rear spring lugs. Front diameter is 1 7/8 with a 5/8 bolt and rear 1 11/16 with a 9/16 bolt (actually metric sizes). My bushings wore out prematurely because I installed a rear differential lock. I couldn't find a local supplier other than Delco who could supply me with matching bushings. GM no longer supplies OEM bushings. I ended up finding matching bushings online from a spring specialist who makes the bushings themselves. I'm sure this will work on its own, but in the short term it could cause problems for consumers.