Boss Differentials
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Also included in the team is Sharon Watson who helps with the promotion and operation of Boss Differentials.
Boss Differentials is a family owned business promoted, owned and operated by Graham and Jeff Watson who both have engineering tradesperson qualifications in Fitting and Turning. All work is carried out in house at Boss Differentials Lonsdale Workshop by Graham and Jeff. We are a very proud and exact business and back up all of our work for quality and durability and help many people with Race Cars, Hot Rods and Street Performance Vehicles.
Steve Ramsey doing it at the street meeting at The Bend
05/12/2025
Strange pro iron 9" diff centre for a tuff job in a street/strip application
15/11/2025
The boys with Vaughan and the BOSS at the Adelaide Auto Expo with the Torana, cool car great times
04/07/2025
Tuff Strange pro iron 9inch rebuild and upgrade to 35 spline for triple rotary powered drag racing car
11/04/2025
Nissan R 200 differential with full Nismo works ready for some action.
28/01/2025
Torana A9X Diff re build to original specifications
First time down out of the gate at BMX , my Grandson 4year old Leo does a awesome job!!
29/05/2024
Tuff borg warner diff completely built in house as per pics to suit a Mazda 1300 using dana spicer, Eaton harrop, superior, willwood, timken and boss girdle parts
24/05/2024
Pro iron Strange tuff diff centre combo built for tuff performance.
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Address
Unit 5/4 Scarborough Way Lonsdale
Adelaide, SA
5160
Opening Hours
| Monday | 9am - 5pm |
| Tuesday | 9am - 5pm |
| Wednesday | 9am - 5pm |
| Thursday | 9am - 5pm |
| Friday | 9am - 5pm |