Hi Peter ,
It involves fabricating a mounting bracket for the GB , machining the casing to take half shafts , and adapting the gear linkage which comes out of the top of the box ( so selector oil leaks !) . . . .I have asked one of the guys to send me a couple of pics which will better illustrate what has been done , will be in touch shortly I hope ,
Regards, Carvel
Oops . . should read "So NO selector oil leaks " . . . sorry