GMC 15665302 Shackle Kit,Rear Spring

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To remove and replace the leaf springs on a vehicle, start by raising the rear of the vehicle and supporting it securely on jack stands. Block the front wheels to prevent the vehicle from rolling off the stands. Use a floor jack to support the axle and raise it slightly to relieve tension on the leaf springs. Remove the four U-bolt nuts and washers, followed by the anchor plate and U-bolts with a spacer. Raise the axle slightly off the springs with the floor jack. If the spring will be removed for an extended period, support the axle with jack stands. To reinstall, reverse the removal steps, gradually tightening the U-bolt nuts in a crisscross pattern and then tightening all fasteners to the specified torque. If the bushings at the ends of the spring are worn or deteriorated, they can be pressed out and replaced with new ones.