BEL218 / 218 - Application Notes 05-06 Silverado / Sierra 1500 Standard Cab / Short Bed (With OEM Front Torsion Bar) - (3-4”, 4”) Notes: - Min. wheel size 17“. - We recommend using a C-Section kit for additional travel - For Extended Cab applications use Lowering Blocks #6202 (3“drop with 2°taper) or #6102 (2“ block with 2° taper).