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.
Complete Differential Rebuild / Repair / Installation Kits
Our Differential Kits are designed and assembled to make your repair, installation or complete differential overhaul as smooth and trouble-free as possible. Commonly referred to as a Differential Repair Kit, Differential Installation Kit or Differential Rebuild kit, our complete kits are assembled in-house using the highest quality components available. Our kits are available as a Master Kit with everything you need, a Basic Kit for the professional service shop, a Pinion Kit with just pinion components, and a Mini Kit when you need everything except the bearings. We also have Internal Parts Kits, Posi Clutch Kits as well as Axle Bearing & Seal Kits.
Call before 4 PM and your order usually ships out the SAME DAY!
Master Differential Rebuild Kit - (IK)
Our Master Kit comes complete with everything you’ll need to rebuild the center section of your differential. These kits include the following, as needed per application: pinion and carrier bearings, pinion seal, pinion shims, pinion nut, crush sleeve or depth shims, ring gear bolts (most applications), o-ring, gear marking compound & brush, Loctite, cover gasket or Victor Reinz Reinzosil® sealant, carrier or super shims, slingers & baffle, and installation instructions. Master Kits can be found in our catalog or Application Guides in the “Master” column with an “IK” prefix
Basic Differential Kit - (BK)
Our Basic Kit is assembled for the fully stocked shop and includes the basic parts needed for rebuild a differential: pinion and carrier bearings, pinion seal, o-ring (where applicable), pinion nut, and crush sleeve. Basic Kits can be found in our catalog or Application Guides in the “Basic” column with an “BK” prefix
Pinion Kit - (PK)
Our Pinion Kit is ideal for low mileage ring & pinion gear ratio changes or for budget rebuilding when only pinion bearings are needed. The kits include pinion bearings, pinion seal, pinion shims, crush sleeve or depth shims, o-ring (where applicable) and gear marking compound & brush. Pinion Kits can be found in our catalog or Application Guides in the “Pinion” column with an “PK” prefix
Mini Kit - (MK)
Our Mini Kit is ideal for low mileage ring & pinion gear ratio changes and includes everything but the bearings, as needed by application: pinion seal, pinion shims, crush sleeve or depth shims, ring gear bolts, o-ring, gear marking compound & brush, Loctite, carrier or super shims, and installation instructions. Mini Kits can be found in our catalog or Application Guides in the “Mini” column with an “MK” prefix
Differential Spider Gear Kit
Our Spider Gear Kit or Internal Parts Kit (IPK) replaces the internal differential components and includes side gears, pinion gears, side and pinion gear thrust washers, cross pin shaft, and cross pin bolt. Internal Parts Kits can be found in our catalog or Application Guides in the “Cases & Internal Parts” section, in the “Internal Parts” column with an “IPK” prefix
Axle Bearing & Seal Kit
Our Axle Bearing and Seal kits are available for most common semi and full floating axles. They contain the bearing(s) and seal for one axle and are built in-house using OEM components like Timken Bearings and National Seals. Toyota Kits use OEM KOYO bearings. Parts are also available individually. A list of our standard Axle Bearing & Seal Kits can be found HERE. Call our sales department at (800) 510-0950 to order.
Differential Clutch Kit
We keep posi clutch kits in stock for plate clutch-style differentials including Powr-Lok, Trac Lok and a few others. Applications include differentials from Dana, Ford, Eaton, Chrysler and GM. Call our sales department at (800) 510-0950 to order.
All of our kits are assembled in-house using only the highest quality components from manufacturers like Timken, National and KOYO.
