218 mm chevrolet ring pinion

Find GM or Chevrolet ring pinion sets and rear end parts

Information is presented to assist you in making the determination of what rear end you have in your vehicle.   General Motor rear end differentials are referred to by the diameter of the ring gear, i.e. 7.5 inch 8.5 inch, 10.5 inch.  Below find a table identifying the different rear end types you might have.  Using this table you will be able to locate the detailed information on replacement ring and pinions ratios that are available plus other differential parts, upgrades and parts for changing ratio's to improve your vehicle's performance.

Let us help you get the correct parts the first time when you are looking for General Motor's ring and pinion replacements. Give us a call 800-216-1632 and let us help save you some money!

How does switching your rear end ratio help the driver or vehicle performance?

We specialize in matching your tires and axles with the desired differential ratio's, we have a wide variety of gear sets in stock and can recommend and select the best suited differential for your driving application. We will recommend the right gear ratio to match your engine horsepower, transmission specifications and tires that you may have selected. 

Thinking about changing tire size we can help, consult our Look up chart for determination of engine RPM, gear ratio verses selected tire size combination.

Larger tires on lifted truck suffer from loss of power, changing the ring gear and pinion to a lower ratio is the answer.  Changing rear end ratio can improve fuel mileage, reduce and extend engine life, and/or add additional power for your towing requirements.

Why you need a positraction?

Without positraction only one rear wheel receives the power.  In bad road conditions say, mud, ice or snow traction to one wheel is bound to get you stuck.  Installing a positraction provide power to both wheels at the same time, a significant improvement in traction. For positraction replacements and parts see the following link.  Positraction units are available for many General Motor FWD Front Wheel Drive models.