Getrag or ZF question.
I am driving a E30 with a M50b25tu engine. At the moment i'm using the Getrag S5D 200G from a e36 325i manual box . My question is , can i change the Getrag to ZF manual gearbox from a e36 328i without changing the long shaft or other stuff. I ask this because my mechanic told me if I want to change to ZF manual box I have to face the long shaft problem because the ZF manual box is longer than Getrag manual box or the other way round. I don't really want to cut and weld the long shaft and also which gear box more robust, the Getrag or ZF. Oh, last question E36 M3 uses which gear box Getrag or ZF box. I would appreciate any reply.
Thanks in advance.