Ford 9in Axle 31 Spline 33in

The Ford 9in Axle 31 Spline 33in from Allstar Performance is a durable rear axle assembly designed for high-performance Ford 9-inch differentials. It caters to builders and automotive enthusiasts who require reliable power delivery and enhanced durability for street, strip, and off-road applications. This axle is particularly suited for those upgrading stock suspension geometry or accommodating increased horsepower in modified vehicles.

With a 33-inch installed centerline length and a 31-spline design, this axle provides a robust solution for popular Ford platforms. The 31-spline shaft count is recognized as the industry standard for modern high-performance applications, offering superior load-carrying capacity. Allstar Performance constructs these axles from high-quality alloy steel, which is shot-peened for enhanced fatigue resistance and precision-ground to ensure smooth engagement with differential carriers.

Ideal for Ford Mustang, Torino, Ranchero, and light-duty truck owners, this axle supports rear suspension upgrades and performance differential installations. Its robust construction is designed to handle sustained acceleration and cornering loads, making it a reliable choice for both street cars and dedicated track machines. However, compatibility with specific rear housings should be verified to ensure proper fitment.