hi guys can someone help me I have a bc rs turbo gearbox the early one can I fit in it the mechanizime of a ib5 in it with centrlizer spring tnx

 

You certainly can. You will need to machine the casing to take the larger ib5 bearings - which isn't the upgrade people think it is, as you are thinning the already weak casing/housing of the box so its fixing one issue but creating another.

 

hi first off all tnx for replay but I want to change only the part that have centralaize spring can I tnx

 

Ah, so the selector mech. Yer that should go in without any problem