We help determine what are the best 10-spline quick change gear ratios for your street or racing needs

Quick Change Gear Chart | RPM Gear Ratio Formula for 10-Spline

Tim talks about our Winters quick change rear end & components.

Speedway Tech Talk - Quick Change Rear Ends & Components

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

Quick change rears have been around since the 1940s and while many are familiar with them, to others they’re a mystery we’ll help explain

What is a Quick Change Rear End and How Does It Work

How to determine the quick change R&P ratio without opening up the rear in street cars with quick changes, sprint cars, modifieds, late models and GOTRA cars.

Quick Change R&P Ratio Without Opening Up the Rear

Take your crate motor racing to the next level with these tricks and tips that won't get you in hot water with tech officials!

Increasing Your Lead in Crate Motor Classes (Legally!)

Not sure what to get that race car driver in your life? Don’t worry, we’ve got your back this holiday season with our 2023 gift guide!

Top Holiday Gifts for Race Car Drivers 2023

Little is thought of your engine’s starter until it refuses to turn your engine over at the worst possible moment. Today’s powerful mini starters can crank the biggest engines with ease. Learn how in our buyer’s guide.

Upgrade Your Ride with a Mini Starter!

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 what gear oils do for your differential and how to choose the best gear lubricant for your application's needs

What is Differential Fluid | Gear Oil Weight Explained

Engine Family Facets

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Quick Change Gears

Quick Change Gears | Speedway Motors

Shop Quick Change Gears and get Free Shipping on orders over $175 at Speedway Motors, the Racing and Rodding Specialists. Quick Change Gears in-stock with same-day shipping.

Quick Change Gears

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Rear Axle Family

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Products

Winters Performance Steel 6 Spline V8 Quick Change Gears

Winters Performance Steel 6 Spline Midget Gear Set, 1 Inch Wide

B&J Midget Quick Change Gears

Popular Parts