Your Full Service Differential Repair Shop since 1982!


image image image image
Accurate Estimates Our free differential repair estimates are usually very accurate. In most cases we are able to correctly identify the scope of work on our original estimate and complete the repair within the estimated repair cost.
Free Differential Estimates Ring & Pinion Service provides free differential repair estimates. By diagnosing the noise in a differential and axle assembly we can usually determine what needs to be done before we start.
Same Day Service Most differential repairs and upgrades can be completed in a day or less. Call for an appointment or use our online appointment form.
Ring & Pinion Service Quality differential service, repair and performance... Guaranteed!

Differential Repair, Gear Sets, Bearings, Axles and Noise: Frequently Asked Questions

The following are some frequently asked questions about differential repair, diagnosis and overhaul. Use this information as a guide only.

Each issue is unique, so if in doubt call our differential repair experts for advice. We can help determine if you can get your vehicle to us safely if repairs are needed, or give you advice on your best plan of action to keep your vehicle in service and operating properly.

My differential is clunking and banging. Do I need help right away?

Differentials and axles that make banging or clunking noises should not be driven and require immediate attention. Banging or clunking differential parts can cause damage to otherwise good parts if driven.

My axle housing has an oil leak. What should I do?

Axle housings with substantial oil leaks (puddles) require immediate attention and should not be driven unless the oil can be topped off and the drive is only a few miles. Minor oil leaks (drips) can be driven for a while, but will eventually result in a lack of lubrication and may indicate problems with other parts.

My differential makes whirring or howling noises. Can I keep driving it?

Ring and Pinion gear sets and bearings that have just started to make noise do not necessarily require immediate attention, but they aren’t going to get better without replacement. Noisy bearings and gear sets will continue to fail and may eventually cause damage to otherwise good parts.

Do ring and pinion gear sets need to be replaced as a set?

Yes. Ring and Pinion gears come in matched sets and must be replaced at the same time.

My differential shudders and pops when I turn after it warms up. What’s wrong?

This is called “posi chatter” and can be an indication of worn limited slip differential clutches or lack of positraction antifriction additive. A minor shudder can indicate the normal performance of an agressive limited slip differential as the clutches bind and release on corners.

Should I remove the axle housing or bring the vehicle to Ring & Pinion Service?

If the differential is noisy and the vehicle can be driven, we would prefer to have the vehicle so we can drive it and hear the noise. If the vehicle can’t be driven and towing is not an option, the axle housing can be removed and delivered to us. Repairs or modifications will typically cost $80-$100 less if the axle housing only (or center section) is brought to us, with brakes removed for semi float axles. Independent front or rear suspension housings will cost about $200 less if the housing is removed and delivered to us.

Will Ring & Pinion Service use OEM (Original Equipment) or Aftermarket axle parts to repair my vehicle?

Our expertise allows us to make recommendations depending on the type of vehicle and your budget. Ring & Pinion Service stocks complete lines of both OEM and aftermarket differential parts. In many cases, aftermarket parts will perform just as well as OEM parts.

Ring & Pinion Service can help! We offer Free Diagnostic Service and Free Accurate Repair Quotes.

We can help make sure you get the repairs you need, saving you the cost of additional repairs you don’t need. Contact our Service Professionals for an appointment today at (916)635-9665 or use our online appointment application.

For honest, professional and guaranteed differential repair, Ring & Pinion Service in Rancho Cordova is the answer!

Free Diagnosis & Estimates

At Ring & Pinion Service, we always offer free diagnosis and Free Repair Estimates. Most commonly, one of our differential experts will road test your vehicle (if possible) and give you an accurate diagnosis based on the symptoms and sounds that are present. We can then make recommendations for repair or upgrade of your differential, and provide you with an accurate repair estimate.

Contact the Ring & Pinion Service staff at (800) 787-8012 for more information or make an appointment!

Business Hours

Our Differential & Axle Experts are ready to help from 8 AM to 5 PM Monday thru Friday Pacific Standard Time.

We are closed daily from 12pm until 1pm for lunch!

While we do accept walk-ins, please make an appointment whenever possible for faster service.

eNews & Updates

Follow us on Facebook to see customer rides, shop projects, and more at Ring & Pinion Service.

Sign up to receive email updates about New Products, Promotions and Discounts

Enter your email address:

Delivered by FeedBurner

ARB Air Locker Price Cut

ARB Locker 100 dollar discount

Products Available for the Following Axle Assemblies:

  • AMC Model 20
  • AMC Model 35
  • Toyota 7.5”
  • Toyota 8”
  • Toyota Landcruiser
  • Toyota Tacoma
  • Toyota Tundra
  • Chrysler 7.25”
  • Chrysler 8.25”
  • Chrysler 8.75”
  • Chrysler 9.25” Rear
  • Chrysler 9.25” Front
  • Chrysler 10.5”
  • Chrysler 11.5”
  • Dana 30
  • Dana 35
  • Dana 44
  • Dana 50
  • Dana 60
  • Dana 70
  • Dana 80
  • Ford 7.5”
  • Ford 8”
  • Ford 8.8”
  • Ford 9”
  • Ford 9.75”
  • Ford 10.25”
  • Ford 10.5”
  • GM 55 Passenger
  • GM 55 Truck
  • GM Corvette
  • GM 7.25” Front Differential
  • GM 7.5” and 7.625”
  • GM 8”
  • GM 8.2”, GM 8.25” Front Differential
  • GM Camaro, Pontiac G8, GTO
  • GM 10 Bolt 8.5” and 8.625”
  • GM 12 Bolt Passenger
  • GM 12 Bolt Truck
  • GM 9.25” Front Differential
  • GM 14 Bolt 9.5”
  • GM 14 Bolt 10.5”

The Best Ring & Pinion Service in Greater Sacramento and Outlying Areas

Sacramento | Rancho Cordova| Carmichael | Fair Oaks | Orangevale |Citrus Heights | North Highlands | Rio Linda | West Sacramento | Folsom | Elk Grove | Roseville
Rocklin | El Dorado Hills | Loomis | Woodland | Davis | Placerville | Auburn | Lincoln | Marysville | Yuba City | Vacaville | Fairfield | Lake Tahoe Area

Contact Info

  • Ring & Pinion Service
  • 2429 Mercantile Drive
  • Rancho Cordova, CA 95742
  • Toll Free: (800) 787-8012
  • Tel: (916) 635-9665
  • Open 8am - 5pm M-F
    (Closed 12-1)
Ring & Pinion service provides quality professional differential repair and maintenance for Ford, Chevrolet, Chrysler, GM, AMC, Jeep and Toyota Vehicles. If you need a rear end specialist, look no further. Call Ring & Pinion Service for Quality Service, guaranteed!

Help Center

West Coast Differentials, Inc., Differentials - Automobile, Rancho Cordova, CA