You only need to servo assist the front brakes on a Mini! The servo kit TT3949 has a length of brake line included to allow you to fit it. The fitting is very straight forward…The pipe from the Master cylinder that feeds the front brake is removed from the master and installed in the servo, the line supplied the goes from the servo back to the master from were the first pipe was removed. The hardest part is finding somewhere to mount the servo! Some of the works cars had them fitted inside the car in the passenger foot well!
Regards
Oz
Oz Cooper
Classic Mini Guru UK