Hi guys, was wondering does anyone know of anyone know of a company that does a conversion to the jag diff for the Sierra rear beam?
I’m currently using an MT75 Dohc Sierra box converted to fit my BOA v6 with the Granada cosworth 7.5 inch diff. The car is currently making 407hp and 443lb/ft torque and is surviving ok but I will be mapping the car over the winter and it will have in excess of 500lb/ft of torque so can imagine something will break and want to be prepared to upgrade.
Any help or suggestions would be appreciated. This will at least let everyone know that the MT75 can handle well over 400lb/ft with completely standard internals.