Product updated on 2021-01-08, McGaughys - MCG:33010, 99-06 Silverado/Sierra front coils, 2 inch drop on Ext and Crew cabs, 1 inch drop on reg cab, , McGaughys started off manufacturing suspension parts for classic Chevy cars but over the years they have evolved into a full line suspension manufacturer including Lowering Suspension, Lift Kits as well as Classic Car Suspension parts.