Need help with rear end identification for your muscle car or hot rod? Learn how to identify 9-inch Ford housings and how to measure your axles with our diagrams.

Ford 9-Inch Housing Identification and Axle Measurement

In this Tech Tip, John responds to a customer looking to upgrade the 8” stock differential in his Cougar to a 9” open diff.

8 Inch to 9 Inch Upgrade

A brief overview of the steps Speedway Motors takes to ensure you get a quality differential.

What Goes in to a Speedway Differential

In this tech article, we discuss the pros and cons of the Ford 9-Inch and the Chevy 12 Bolt rear ends. Click here for our take on this classic debate.

The Rearend Debate: Ford vs. Chevy

A step by step guide on how to install an open drive conversion kit on a Ford Banjo rear end. View the list of tools and materials needed to complete this installation.

Ford Banjo Rear End Open Drive Conversion

Learn about the power behind the G-body platform and the steps to upgrade a 7.5" bolt rear end to a 8.5" to withstand high horsepower. See how to change the differential fluid and install new gaskets.

Replacing a G-Body 7.5" Bolt Rear End

Lucas P. explains how to choose the correct part for a Ford 9" third member build in order to achieve a bulletproof rear. You will find specific recommended parts to use from Speedway Motors.

Choosing Parts for Your Ford 9" Third Member Build

Read up on GM 10 bolt ring and pinion installation instructions. Follow along as our employee Zach installs a GM 10 bolt rebuild kit from Motive Gear.

GM 10 Bolt Rebuild Instructions

Posi, limited slip, Traction-Lok, or whatever your favorite brand calls it is how your rear axle provide equal traction to both tires, and trust us, you’ll need it! So, read all about posi units and their benefits here in our guide.

What Is Positraction and Do You Need It?

A full floating rear end is not just for dedicated track cars anymore. Many high horsepower street cars will be well suited to make the move to a Grand National style full floating axle. Read on to see why.

Should you use a Full Floater Rear End?

Differential Housings

Differential Housings | Speedway Motors

Shop Differential Housings and get Free Shipping on orders over $149 at Speedway Motors, the Racing and Rodding Specialists. Differential Housings in-stock with same-day shipping.

Differential Housings

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Race Type

Rear Axle Family

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Application

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Products

Ford 9 Inch Nodular Third Member Center Section Carrier, 3.062"

Ford 9 Inch Aluminum Third Member Center Section Carrier, 3.25

Ford 9 Inch Iron Third Member Center Section Carrier, 3.25

Currie CE-4026C Ford 9 Inch Nodular Third Member Carrier, 3.062