Umm, is this a ZX-6E? If so, it probably needs more than just a shift fork. See www.zx6e.com for more information. I have a 94 and decided to replace the engine with a much newer one instead of fixing the current one. Anyway, it's a lot of work. The engine must be removed from the frame, and the case split to get at the trans. Again, see the zx6e site for more information (assuming you have a ZX-6E and not a ZX-6R)