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

Learn how to assemble a Gotta Show transmission cooler line kit for common GM transmissions. Jeff shares some helpful tips on measuring and cutting the braided stainless steel hose for an easier installation.

Assembling a GM Trans Cooler Line Kit - 1967 Chevelle

When Tyson picked up his '69 SS396, all the trim was in the trunk. We follow along as he installs the shiny stuff to finish out his project.

Installing Exterior Trim on a 1969 Chevelle

See how Jeff tackles the installation of a 9" power brake booster on his '67 Chevelle. Learn some tips for this application and why it's important to leave some free travel at the top of the pedal swing.

Power Brake Booster Installation Guide - 1967 Chevelle

To keep this project moving forward, Jeff installs a gear reduction mini starter on his big block. See how to apply the mini starter on 153 or 168 tooth flexplates.

Installing a Gear Reduction Mini Starter - 1967 Chevelle

This article highlights the finishing touches of the front suspension in Jeff's Chevelle. Learn some tips on how to install the steering arms, center link and tie rod assembly.

Steering Installation - 1967 Chevelle

Engine Family Facets

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1973 K20 Chevy Stovebolt Accessory Drive

1973 K20 Chevy Stovebolt Accessory Drive | Speedway Motors

Shop 1973 K20 Chevy Stovebolt Accessory Drive and get Free Shipping on orders over $175 at Speedway Motors.

Vintage Air 15249-VCB 63-84 Chevy Steel-eez Brckts Right Side Mnt

Spectre 4378 Chrome Water Pump Pulley, Chevy 265-350, GMC 283-327

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4 Bolt Hole Pattern, V-Belt Belt Type, 2 Groove Count

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1973 K20 Chevy Stovebolt Accessory Drive

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Vintage Air 15249-VCB 63-84 Chevy Steel-eez Brckts Right Side Mnt

Spectre 4378 Chrome Water Pump Pulley, Chevy 265-350, GMC 283-327