
Greetings from West Coast Differentials!
Just a quick update for the Fall season. This time around…….
- Custom-built 3rd members featuring high-performance differential cases from Strange Engineering.
- We’ve added Wavetrac to our lineup of traction-enhancing differentials. Guaranteed quality differentials made in USA!
Read more below…….

Custom Third Members | Built to suit
Need a high-performance differential? We build complete 3rd members, custom-built to your specifications. Choose a from from our selection of nodular iron, HD Pro Aluminum or even Polished Aluminum cases and add a locking differential, positraction or spool and the gear ratio you need. We only use the highest quality bearings and seals to complete the assembly, and each unit is carefully built by our seasoned differential technicians. Units are delivered ready-to-run. Install, add oil, break-in and GO! Read more about the Complete 3rd Members we offer.

Wavetrac Differentials | USA Made
The Wavetrac Differential uses a patented design to improve grip in low traction conditions. These high-performance units are manufactured entirely in the USA and come with a limited Lifetime Warranty. Maintenance-free, 9310 alloy steel gears, case hardened or forged cases and more… We have select units in stock and ready for delivery today! Check out the details of the Wavetrac Differential
Thanks for your business!
The West Coast Differentials Team
Questions or Comments? Give us a call at (800) 642-0950

West Coast Differentials has been distributing quality differential and axle parts since 1982. We believe that our exceptional customer service and product knowledge is what sets us apart from the competition. Give us a try, we think you'll be glad you did!
The most current parts and application information can always be found here on our website or by calling one of our differential parts experts. All of the parts we sell are also used every day in our busy service shop. This gives us confidence in the quality of the parts we sell.