A-Premium 2 x Front Suspension Level Kit, 2 inches Drop Spindles, Compatible with Chevrolet Silverado 1500 2500 3500 HD & GMC Sierra 1500 2500 3500 HD & Hummer H2
[Vehicle Fitment-1]: Compatible with Chevrolet Silverado 1500 HD 2001-2003, Silverado 2500 1999-2000/2004, Silverado 2500 HD 2002-2009, Silverado 3500 2002-2006, Silverado 3500 HD 2007-2009; Compatible with GMC Sierra 1500 HD 2001-2003 --- 2" Drop Spindles; Must use 17" or larger wheels in order to use these spindles; aftermarket cast 17" wheels likely will NOT work
[Vehicle Fitment-2]: Compatible with GMC Sierra 2500 1999-2000/2004, Sierra 2500 HD 2002-2009, Sierra 3500 2002-2006, Sierra 3500 HD 2007-2009; Compatible with Hummer H2 2003-2009 --- 2" Drop Spindles; Must use 17" or larger wheels in order to use these spindles; aftermarket cast 17" wheels likely will NOT work
[Installation Position]: Front Left and Right, Driver and Passenger Side
[Professional Replacement]: This steering knuckle is the replacement for above model's suspension system, and may help you resolve those problems: ① hard braking ② difficult turning of wheels ③ uneven tire wear ④ abnormal shaking