The Yukon Gear & Axle YA FMUST-4-31 axle kit is designed for 1999-2004 Ford Mustang models equipped with a Ford 8.8-inch rear axle. This complete 31-spline, 5-lug replacement package combines durable Yukon axles with Dura Grip Positraction to provide dependable power transfer for street driving, off-road use, and performance applications. High-quality alloy construction and advanced heat-treating technology help deliver strength and durability beyond a typical stock replacement axle.
The kit includes two axles, Dura Grip Positraction, carrier bearings and races, carrier shims, axle bearings and seals, axle studs, and a Supershim kit. Including the supporting drivetrain components in one package helps simplify installation and provides the parts needed to refresh key rear axle components during assembly. The C-clip axle design is engineered for compatibility with the specified Ford 8.8-inch Mustang application.
Feature: Designed for 1999-2004 Ford Mustang applications with a Ford 8.8-inch rear axle. Feature: 31-spline axle configuration for increased strength and reliable torque handling. Feature: 5-lug design for compatible Mustang wheel and hub arrangements. Feature: Includes Dura Grip Positraction for improved traction and balanced power distribution. Feature: Complete kit includes two axles, carrier bearings and races, carrier shims, axle bearings and seals, studs, and a Supershim kit. Feature: Yukon Gear & Axle alloy construction and heat treatment support long-term performance in demanding driving conditions.
Verify vehicle year, rear axle assembly, spline count, and 5-lug configuration before ordering. This Yukon Gear & Axle kit is intended for the listed Ford Mustang applications and may require professional installation with appropriate axle service tools and procedures. It carries a California Proposition 65 warning.
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