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.Ford 8.8 Truetrac
The Detroit Truetrac for the Ford 8.8”- 33 Spline is ideal for upgrading existing Ford 8.8” axles (1983 – 2011) as well as custom powertrain builds.
Ford 9 Detroit Truetrac – 35 Spline 5 Pinion
The Ford 9 Detroit Truetrac 35 Spline is perfect for use in Ford 9″ axle applications that are being upgraded from 28 or 31 spline to 35 spline.
This unit is also ideal for custom powertrain builds. The 5-pinion design of the Ford 9 Detroit Truetrac provides incredible strength, smooth maintenance-free performance and proven durability. Available NOW!! Call the differential experts at West Coast Differentials for more information. Representatives are available to help Monday thru Friday from 8am to 5pm Pacific Standard Time.
Check out the Detroit Truetrac FAQ’s page for more information.
Detroit Truetrac for AAM 10.5″ GM 14-Bolt Axles
 |
Eaton Performance Products has announced the new Detroit Truetrac for AAM 10.5″ (GM 14-Bolt) Differentials!This differential is commonly found in 3/4 and 1-Ton GM Trucks and commercial vans.The proven helical gear design of the Detroit Truetrac eliminates the need for wearable parts, resulting in maintenance free traction recognized not only for its toughness, but its smooth and quiet operation as well. Proven design, low cost and effective performance all make the Detroit Truetrac limited slip differential the ideal choice for a wide variety of vehicle applications. No maintenance – Just Traction!
Contact our Sales Department for more information. |
2010+ V8 Camaro Differential
 |
Late Model Camaro Differentials –The 2010+ V8 Camaro uses a 10-Bolt GM 8.6″, & 218mm axle. West Coast Differentials offers an variety of Chevrolet Camaro differential and axle parts for 2010 and newer V8 Models. Available parts include the AAM TracRite PC Limited-Slip Differential, Eaton’s Detroit TrueTrac, Ring & Pinion Gear Sets, Bearings, Install Kits & Seals. The AAM TracRite PC (Plate Clutch) Traction Enhancing Differential is configured to bias torque to the high-traction wheel, based on torque input. Another available option is Eaton’s Detroit TrueTrac, a maintenance-free helical gear type limited-slip differential. Available ring & pinion gear ratios include 3.08, 3.23, 3.27, 3.45, 3.73 and 3.91. For more information call our Sales Department at (800)510-0950 or check out the Application Guide for Camaro |
Jeep JK Gear Package Deals
Gear & Axle Package Deals
Are you planning a complete axle build and need Gears, Axles, Kits and a Traction Device? Let us put a package deal together for you! Our packages give you substantial savings over buying parts individually. The following is an example of one of our past package deals…
Jeep JK Gear Packages Ring and Pinion, Lockers Axles & More.
 |
Ring & Pinion Gear Package:Get the Right Differential Gear Ratio at the Right Price!Our Jeep JK Gear Packages start as low as $499.00* |
Gear Package Upgrades
Add Locking Differentials, Limited Slip Differentials or Chromoly Axles to your JK Gear Package and . We have lots of options available. If you don’t see what you’re looking for, give us a call!
Upgrade your Ring and Pinion Gear Package for added savings!
 |
Detroit Locker –Automatic, Durable & Dependable |
|
 |
ARB Air Locker –100% Traction on Demand, Proven Strength and Durability |
|
 |
AEV Procal Module –Multi-function recalibrator for Jeep JK owners. |
|
 |
Chromoly Axle Shafts –Up to 40% Stronger than stock Axle Shafts Add Chromoly Front Axles – $425.00* |
|
 |
Truetrac Limited-Slip –Tough, Smooth and Quiet Performance |
|
| * Prices subject to change without notice. Prices for upgrade items apply when ordered with Gear Packages only. Substitutions will effect final package price. Contact our sales department for details. Shipping not included. | ||
Detroit Truetrac Limited Slip Differentials
Eaton’s Detroit Truetrac was the first helical gear differential ever introduced into the automotive aftermarket.
The Detroit Truetrac remains the leading gear-type limited slip differential in the industry.
Detroit Truetrac’s proven design eliminates the need for wearable parts, resulting in maintenance free traction. Recognized not only for its durability but also it’s smooth and quiet operation. Engineered to work efficiently in front and rear axles, semi-floating (C-clip axles) and transfer cases. Power transfer is so smooth, it literally goes unnoticed by the driver – even in front wheel drive axles.
Proven design and effective performance, all make the Detroit Truetrac limited slip differential the ideal choice for a wide variety of vehicle applications.
No maintenance – Just Traction!
Call the Detroit Truetrac experts at West Coast Differentials today for pricing, application information and expert technical advice at:
(800)375-6849
We stock the entire line of Eaton Performance Differentials, including the Detroit Locker®, Eaton ELocker®, Detroit Truetrac® and Eaton Posi™. To see the entire lineup including technical information, application information and service kits, go to the Eaton Performance Application Guide
Check out the Eaton Detroit Truetrac FAQ’s page
Not sure which Locking Differential or Posi is the right one for you? No problem! Our Differential Professionals are here to help Monday thru Friday, 8am to 5pm Pacific Standard Time.
Nissan Titan Locking Differentials
 |
West Coast Differentials has three different locking differentials available for the Nissan Titan Dana 44 Rear axle (M226-32 Spline). These options include the Dana Spicer original factory electric locking differential, Eaton’s Detroit Truetrac and the ARB Air Locker. Both the factory electric locker and the ARB Air Locker are open differentials that can be fully locked by the flip of a switch. The Detroit Truetrac is a smooth-operating limited slip. Axle modifications may be required to install a Truetrac in models equipped with the factory electric locker. These models have unequal axle lengths due to an offset cross-pin. For more information, check out our Application Guide for Nissan, or call our sales department for assistance. |
