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 rebuild a brake on a 3rd gen Camaro. Follow this guide on how to install and align bearing races without damage.

3rd gen Camaro Brake Hub Rebuild

Inside GM’s Gen V LT engine family: history, tech, and performance of each LT engine option available.

GM Gen V Engine Guide | LT & EcoTec3 Engine Specs Guide

Pat talks about our GPS module that generates a speed signal to your electronic speedometer.

Speedway Tech Talk - GPS Your Speedometer

Looking to swap the venerable LS engine into your hot rod, muscle car, or classic truck? Take a look at our detailed identification guide for Gen III/IV LS engines before you hit the salvage yard or swap meet!

Gen III/IV LS Engine ID Guide

Learn more about GM steering column identification, GM steering column lengths, and GM steering column compatibility.

GM Steering Column Compatibility, Interchange & Repair Guide

Learn how to swap out an LS engine with a modern fuel injected engine into a hot rod for added horsepower, fuel economy, or throttle response. View a list of parts and helpful tips to complete the installation.

LS Swap Guide: GM 3 Speed / 4 Speed Parts List

It's important to pick the correct distributor gear material for your camshaft to prevent the gear failing and causing big problems for your engine.

Distributor Gears for Roller Cams | Iron, Bronze, Melonized, Composite

This article demonstrates how to install a complete Winters quick change kit with additional parts including birdcages, brackets, and calipers for a modified race car.

Quick Change Bolt On Components for a Modified Race Car

Expert techs Austin and Pat talk about some of the race car body parts we have to offer and the aerodynamic benefits they can add to your modified.

Speedway Tech Talk - MD3 Modified Aero Valance Kit & Rocker Panels

Engine Family Facets

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3rd Gen GM F-Body Powerglide Speedometer Drive Gears

3rd Gen GM F-Body Powerglide Speedometer Drive Gears | Speedway Motors

Shop 3rd Gen GM F-Body Powerglide Speedometer Drive Gears and get Free Shipping on orders over $175 at Speedway Motors.

3rd Gen GM F-Body Powerglide Speedometer Drive Gears

Tooth Count

Brand

Platform

Price

Products

OER 9775187 Light Green 45 Teeth Speedometer Gear

OER 9774413 Light Green 34 Teeth Speedometer Gear

OER 1359271 Red 37 Teeth Speedometer Gear