Check the listing for details. 4" Drop Lowering Spindles+ Spring for Chevy GMC Silverado Sierra 1500 1999-2006. Condition: New. Listed at 376.77 USD. These Spindles Work with 2WD / 4WD Applications! Min 17" Rims Required.When using 17" rims, it is required to trim the lower ball joint stud and modify the lower ball joint nut. Made from high quality cast iron Electrophoretic coating for anti-rust Drop your vehicle to enhance handling and performance. Drop spindles allow you to keep your stock coil, stock shock, steering geometry and get a 2-inch drop without any other modifications. Easy-installation.These Spindles Work with 2WD / 4WD Applications! Min 17" Rims Required.When using 17" rims, it is required to trim the lower ball joint stud and modify the lower ball joint nut. Made from high quality cast iron Electrophoretic coating for anti-rust Drop your vehicle to enhance handling and performance. Drop spindles allow you to keep your stock coil, stock shock, steering geometry and get a 2-inch drop without any other modifications. Easy-installation.