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

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

Advantages of using Speedway Motors weld-on rear disc brake kit for a Ford 9-Inch rear end. Learn some tips for installation. This kit includes IMCA approved brake calipers.

Disc Brake Kit for a Ford 9-Inch Rear End

Learn how to assemble one of our bolt on nine-inch Ford disc brake kits in this step-by-step guide.

How to Assemble Our Ford 9 inch/8 inch Disc Brake Conversion Kits-Tech Talk

In this video, we go through the process of measuring and cutting 9" Ford axles.

How to Measure and Cut 9 Inch Ford Axles

Learn how to ID a Ford 8.8 rear end by tag, width, and code. Compare 8.8 vs 9-inch axles, decode gear ratios, and find which Ford models used them.

Ford 8.8 Rear End ID Guide | Widths, Codes & 8.8 vs 9" 

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

Print these fun car coloring pages for your kids! From the early years of Speedway Motors to hot rods and race cars, there are scenes for everyone!

Car Coloring Pages

Engine Family Facets

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G-Body Ford 9 Inch Automotive Literature

G-Body Ford 9 Inch Automotive Literature | Speedway Motors

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G-Body Ford 9 Inch Automotive Literature

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Car Tech SA249 How-To Rebuild 8.8/9 Inch Ford Differentials Book