8.8" Ring & Pinion Installation Kit • 1986-2003 Mustang (Including IRS) • Includes: • Ring Gear Bolts • Crush Sleeve • Cover Gasket • Pinion & Carrier Shims • Pinion Seal & Nut • Shelby GT500 Pinion Bearings • Heavy-Duty Carrier Bearings • The included 2012 Shelby GT500 high-torque pinion bearings add durability for modified vehicles