Western Differential
Whether You're Rock Crawling or Crawling through Traffic,
We Have You Covered
Western Differential is a complete diff shop with the quality, service and expertise to handle all you needs from 4-Wheel Drive to racing, towing to working or just daily driving. Our experts can assess your needs and customize the components that are right for the job. We have a huge inventory of top quality new parts and carefully inspected used parts. 
Whether you need axles or drive shafts, overdrives or underdrives, front diffs or rear diffs or a new ring and pinion set, we can install in our shop or ship to you anywhere!
In addition to rear differentials, we also build front diffs, overdrives and supply parts and kits for the do-it-yourselfers. We use brand names you can trust like Strange Engineering, US Gear, 9+, Air Locker, Detroit Locker, Dana, Spicer, Timken, Eaton, Superwinch and Superior Axel and Gear. We can put together a complete package for you with posi units, performance axles, drive shafts and brakes. From repairing the family car to customizing the street rod, we will treat your job with the same professionalism that we have been known for over 36 years.
Open Tuesday - Friday 7AM - 6 PM
3825 E Kleindale Rd Tucson, AZ 85716 • (520) 327-1747
e-mail : westerndiff@aol.com
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f your looking for a differential that will handle high horsepower SRT modifications --We have the solution.