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We Make the Difference At West Coast Differentials we are committed to making your experience with us totally enjoyable. We think top notch customer service is the most important thing we do. Hence, at West Coast Differentials, We Make the Difference is much more than a slogan.
Differential Parts Distributor We have your differential parts in stock ready to ship today. West Coast Differentials stocks a complete line of light duty axle parts for Chevrolet, Chrysler, Dana, Ford, GM, Jeep and Toyota axle assemblies.
Same Day Shipping At West Coast Differentials we think you deserve to have your parts as soon as possible. So most orders placed before 4pm Pacific time ship the same day!
Free Technical Support West Coast Differentials offers Free Technical Support before and after you buy differential parts from us. Our differential parts experts will make sure you get the right parts the first time!

Differentials, Ring and Pinion Gear Sets, Axle Shafts and a Huge Selection of other Differential Parts

Differential and Rear End Parts West Coast Differentials distributes the highest quality light duty differential parts available at a competitive price. We have an extensive inventory of open, limited slip and locking differentials, OEM and aftermarket ring & pinion sets, stock replacement and Chromoly axle shafts, differential rebuild kits, and much, much more!

Product of the Month

Eaton Performance Payout – REBATE!

Eaton Rebate Detroit Locker TrueTrac ELocker_Posi

Get cash back with Eaton’s Spring Performance Payout! Now thru June 30, 2014, buy a Detroit Locker, TrueTrac, ELocker or Eaton Posi and get a rebate of up to $70. See more about the Eaton Performance Payout

ARB Air Locker Rebate

ARB Air Locker Rebate $75

$75 ARB Rebate Promotion

Buy an ARB Air Locker and get Cash Back! Now thru April 30, 2014……Don’t miss out on a great rebate on the original and still the best Air Actuated Locking Differential. More details on the ARB Air Locker Rebate

The NEW Eaton ELocker 4 for Dana 44

Dana 44 E Locker 4

Eaton ELocker 4

The New ELocker 4 is a stronger 4-pinion design electric locking differential for the 30-spline Dana 44. Switch from a fully-open to 100%- locked axle at the touch of a button.

Check out the Dana 44 ELocker 4 details.

MBZ / Dodge Sprinter Differential Parts

Sprinter Differential Parts for Mercedes Benz Dodge Freightliner MB215

Mercedes Benz / Dodge Sprinter Differential Parts are available at West Coast Differentials!

We’ve got Ring & Pinion Gear Sets, Master Installation/Repair Kits and complete open differential Carrier Assemblies for 03-06 models. Stop paying outrageous dealer prices for Sprinter MB215 parts. Call our parts specialists for details and availability.

Ford Raptor Ring and Pinion Gears – Late Model

Ford SVT Raptor Differential Gears

West Coast Differentials has Late-Model Ford Raptor Ring and Pinion Gears!

Ford Raptor Ring and Pinion Gears are available in 3.55, 3.73, 4.10, 4.56 and 4.88 ratios. Call our Differential and Axle Specialists for details.

Synergy HD Ball Joints

Synergy Ball Joints for Jeep JK Wrangler

Upgrade your factory Ball Joints with a set of Synergy HD Ball Joints!

Featuring a fully greasable sintered metal on bushing design that has high wear resistance, Synergy Ball Joints outperform the Mopar factory plastic bushings and come complete with a 12-month unlimited warranty. Learn more about Synergy HD Ball Joints

See more New and Featured Items from West Coast Differentials ⇨

⇦ Get the latest NEWS, DISCOUNTS AND NEW PRODUCT INFORMATION as soon as it’s available. Simply subscribe to our mailing list in the left sidebar. None of your information, including e-mail addresses, will ever be shared with or sold to any third-party.


Contact our Experts!

Our team of Differential Specialists are available to help Monday thru Friday, 8am to 5pm Pacific Standard time.
Contact us at

(800) 510-0950

Most orders recieved before 4pm are shipped out the Same Day, with next day delivery at ground shipping rates to the Western U.S.

eNews & Updates

West Coast Differentials has been providing Quality Brand-Name parts and expert customer service since 1982!

West Coast Differentials 30 Years

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2013 Product Catalog

Ring & Pinions

View or Download a copy of our current Differential Parts Catalog!.

News & Press

Featured Item Archive

For a complete list of new products, promotions and clearance deals, check out our New Differential Products archive.     West Coast Differentials, Inc., Differentials - Automobile, Rancho Cordova, CA

Differential and Axle Parts Available from West Coast Differentials:

  • Ring & Pinion Gear Sets
  • Open Differentials
  • Limited Slip Differentials
  • Locking Differentials
  • Spools
  • Differential Rebuild Kits
  • Stock Replacement Axle Shafts
  • Chromoly Performance Axle Shafts
  • Transfer Case Kits
  • Wheel Bearing Kits
  • Differential Third Members
  • Differential Yokes

Contact Info

  • West Coast Differentials
  • 2429 Mercantile Drive Suite A
  • Rancho Cordova, CA 95742
  • Toll Free: 800-510-0950
  • Tel: 916-635-0950
  • Fax: 916-635-1105

We Make the Difference

  • At West Coast Differentials we are committed to making your experience with us totally enjoyable. We think top-notch customer service is the most important thing we do. By asking ourselves what makes us different than other companies, our answer is that we deliver the level of customer service that other companies only promise.