The USA Standard 8.8" ring-and-pinion install kit from Yukon Gear & Axle includes a 3.27 ratio ring and pinion plus a Master Installation Kit with bearings, seals, and small parts for 1986–2004 Ford Mustang 8.8" rear applications. The quick kit bundles high-quality Koyo bearings, axle bearings and seals, and the specified 8.8" ring gear to simplify differential re-gear and repair jobs.
Yukon Gear 86-04 Ford Mustang 8.8in Rear 3.27 Ratio Ring and Pinion Install Kit