GM’s 10-bolt rear axle has been around since the 1960s, here’s how to determine if your junkyard find is worth taking home

GM 10-Bolt Identification and Upgrades | 7.625, 7.5, 8.2, 8.5, 8.6

Decode, ID, and upgrade your GM 12-bolt rear end. Learn axle specs, gear ratios, and best performance parts upgrades.

GM 12-Bolt Rear End Identification & Upgrade Guide

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

Steve provides a step-by-step guide to install the Speedway Motors GM 10-Bolt Polished Finned Aluminum Rear End Cover.

GM 10-Bolt Polished Finned Aluminum Rear End Cover Installation Guide

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

See how to install 3" Ram Horn exhaust manifolds on a C/10 with a 406 engine. Learn some tips on welding steel tubing to a cast iron manifold and how they are modified to fit the truck.

Installing 3" Ram Horn Manifolds on a C/10

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71-76 GM C-Body GM 8.5 Inch 10-Bolt Axles

71-76 GM C-Body GM 8.5 Inch 10-Bolt Axles | Speedway Motors

Shop 71-76 GM C-Body GM 8.5 Inch 10-Bolt Axles and get Free Shipping on orders over $175 at Speedway Motors.

GM 8.2/8.5 Inch 10-Bolt Differential Cover Gaskets

MFG. Part #

GM 8.2 Inch 10-Bolt Chevy 64-72, GM 8.5 Inch 10-Bolt

Rear Axle Breather

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Universal Fit, 1.00" Body Length, .25" Thread Length

Mr Gasket 84B Rear End Differential Gasket, 10 Bolt, 8.5 GM

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GM 8.5 Inch 10-Bolt

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71-76 GM C-Body GM 8.5 Inch 10-Bolt Axles

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GM 8.2/8.5 Inch 10-Bolt Differential Cover Gaskets

Rear Axle Breather

Mr Gasket 84B Rear End Differential Gasket, 10 Bolt, 8.5 GM