- Welcome! Apple Hydraulics has served classic and vintage car enthusiasts since 1973. We hope to continue doing so for many more years. You can look up what we can do for your car, see various options for ordering our rebuilt parts, or simply browse our FAQ file. Rebuilding SHOCK ABSORBERS: Lever type shocks ( shocks with arms ) BRAKE and CLUTCH cylinders (master, slave, wheel) and calipers, ...www.applehydraulics.com