Speedmaster Ford 9 in. HD Aluminum Third Member Assemblies 1-215-003-02

Speedmaster Ford 9 in. HD aluminum third member assemblies are designed to help you get that horsepower to the ground. These third member assemblies are available in your choice of the most popular gear ratios and contain a new A356-T6 aluminum case that is assembled with all-new bearings, seals, heavy-duty ring and pinion, one-piece billet (through-bolt) main caps,12-point bolts, U-joints/U-bolts, and precision-machined 1350 billet steel yoke. The cases are offered in 3.250 in. bearing diameter to accommodate 28-spline, 31-spline and 35-spline carriers and spools. These extras truly make the aluminum case the ultimate Ford 9 in. case. Whether you’re assembling a daily driver, street rod, or race car, Speedmaster’s third member assemblies will provide the durability that your vehicle deserves. Order the Ford 9 in. HD aluminum third member assembly model best suited for your driving application.

Features and style notes for Speedmaster third members:

* Heavy-duty Ford 9 in. aluminum case avoid long-term distortions
* 28-spline application is perfect for mildly built street cars or to replace stock differential
* 31-spline is perfect for high performance street cars or as an upgrade from 28-spline
* 35-spline is for absolutely serious street and racing applications
* Complete third member assemblies feature a Torque Worm 6-pinion limited-slip or full-spool differential in 28 and 31-spline axle shaft configurations
* Daytona Pinion support for extreme use (31 and 35-spline models only)
* Available in your choice of the most popular gear ratios
* Lightweight full spool eliminates gear failure
* Billet steel yoke for maximum strength