[Vehicle Fitment-1]: Compatible with Chevrolet Silverado 1500 2001-2003 V6 4.3L(with 143.5 inch Wheelbase), Silverado 1500 2001-2003 V8 4.8L(with 143.5 inch Wheelbase), Silverado 1500 2001-2003 V8 5.3L(with 143.5 inch Wheelbase), Silverado 1500 HD 2001-2003 V8 6.0L(with 208/241 Transfer Case) --- Rear; 4WD
[Vehicle Fitment-2]: Compatible with Chevrolet Silverado 2500 2001-2003 V8 6.0L, Silverado 2500 HD 2001-2003 V8 6.0L, Silverado 2500 HD 2001-2003 V8 6.6L, Silverado 2500 HD 2001-2003 V8 8.1L, Silverado 3500 2001-2003 V8 6.0L, Silverado 3500 2001-2003 V8 6.6L, Silverado 3500 2001-2003 V8 8.1L --- Rear; 4WD
[Vehicle Fitment-3]: Compatible with GMC Sierra 1500 2001-2003 V6 4.3L(with 143.5 inch Wheelbase), Sierra 1500 2001-2003 V8 4.8L(with 143.5 inch Wheelbase), Sierra 1500 2001-2003 V8 5.3L(with 143.5 inch Wheelbase), Sierra 1500 HD 2001-2003 V8 6.0L(with 208/241 Transfer Case) --- Rear; 4WD
[Vehicle Fitment-4]: Compatible with GMC Sierra 2500 2001-2003 V8 6.0L, Sierra 2500 HD 2001-2003 V8 6.0L, Sierra 2500 HD 2001-2003 V8 6.6L, Sierra 2500 HD 2001-2003 V8 8.1L, Sierra 3500 2001-2003 V8 6.0L, Sierra 3500 2001-2003 V8 6.6L, Sierra 3500 2001-2003 V8 8.1L --- Rear; 4WD
[Reference Number]: 65-9371, 659371; Shaft Length: 75.83 inch (Measurement is taken from end of input shaft to center of U-Joint)