Manufactured by McGaughys | 63176 | 1971-72 C-10, 2 1/2Inch Drop Spindles, Uses Hd Disc Brakes, 1 1/4Inch Thick Rotors, , 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. Product information updated on 2023-08-01