Manufactured by McGaughys - Part Number | MCG:63151 | 1963-70 C-10,13 Inch Front Disc Kit W/2.5 Inch Spindles (5 On 5 Inch) (Must Use 17 Inch+ Rims), , 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 2022-04-14