A 9-Inch Housing Built for Every Level of the Game

From bolt-in street setups to 3,000-horsepower modular race housings - engineered to fill the gaps the market left open

Published on
December 19th, 2017

By: Andrew Wolf (Dragzine)

Engineered to Eliminate the Guesswork

From OEM replacement components to Top Fuel dragster hardware, Speedmaster covers the full spectrum of performance and racing machinery. At PRI 2017, the company introduced a bolt-in 9-inch rear end housing designed around a single principle: the customer installs axles, installs brakes, and puts it under the car. No fabrication. No welding.

Bolt-on axle tube options include big and small Ford configurations, with 28-, 31-, and 35-inch lengths. The housing is compatible with all stock and aftermarket 9-inch driveline components, with one requirement: Speedmaster's 3.250 bearings.

"The main thing with this housing was making it lightweight and affordable. The price point on the center section of the housing is only $350, and if you buy it with the tubes and everything it's about $500. Set up custom for a specific application, it's about $600." - Jay Verduzco, Speedmaster

Race-Focused: Modular and Built for 3,000+ Horsepower

The race-focused version takes a similar design philosophy but applies it in modular form. The housing centre is billet steel, with billet aluminium bell ends and spacers. Interchangeable bell end spacers - available in 4.5- and 8.4-inch lengths - allow configuration for narrow or big tyre setups. The housing shown at PRI was configured for 40-spline axles.

A bolt-on bracing system supports four-link applications, adding structural strength where it matters most. The street housing uses a cast aluminium pumpkin with steel bell ends - lightweight, direct, and purpose-built.

Filling Gaps in the Market

Beyond drag racing, Speedmaster is moving the aluminium full-floater setup into oval track racing. The race housing is priced at $1,200.

"We try to fill gaps in the market. Now, with the Street Outlaws, it's opened up this new avenue. People watch the show and they want to do that. Most people aren't going to make the kind of power they are, but they still want something that looks like it, that sounds like it, and can do some of the same things. And that's a big market right now." - Jay Verduzco, Speedmaster

The approach is consistent with how Speedmaster operates: identify where the market is underserved, then engineer a solution that performs at the level the customer expects - at a price point that makes it accessible.

About Speedmaster

Founded in 1979, Speedmaster is a vertically integrated performance company delivering complete, engineered performance systems across engines, drivetrain, and forced induction. With more than 500 employees across three continents and over 25,000 parts designed, engineered, and manufactured in-house, Speedmaster operates as a unified brand built on engineering precision, long-term thinking, and measurable results. Learn more at speedmaster79.com.

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