About Us

We began re-manufacturing manual transmissions in 1970, in the early 1990’s 
at the request of a large national automotive chain we adopted the brand 
name for our exchange units “Black Diamond”

Our range of EXCHANGE RE-MANUFACTURED units cover almost all 
5, 6 speed manual transmissions in the car and light commercial sector.

From Alfa Romeo to Volvo
Front,  rear and 4 wheel drive
Gearboxes, including the latest
DSG (Direct Shift Gearbox)
6, 7 and 8 speed gearboxes

Customers own Units

Even the less popular gearboxes can be repaired or 
re-manufactured to order,
Our repair service is geared to minimise down time for customers. 

Call us before 1pm and we will collect same day.
01925 - 416619