MaxTrac 2-inch rear lowering shackles for 2011-2018 Chevrolet Silverado and GMC Sierra HD trucks. Fabricated steel with a gray powder-coated finish.
 
They replace the factory shackles to lower the rear while retaining the leaf springs. The original shackle bolts are reused, and supplied self-tapping grease fittings provide a way to lubricate the new shackle bushings.
 
Fabricated steel; gray powder coat; 2-inch rear drop. Includes two shackles and two self-tapping grease fittings. Part 411420.