by Cahuna » Wed Mar 01, 2006 12:28 pm
I'm in the process of doing something similar at the moment. I've got a C56 gearbox and a 6 speed (either a C60 or C160 - I'm not sure what the difference is) that I'm building a close-ratio 5 speed out of.
According to my mechanic who is doing the work swapping 3rd/4th/5th from the 6 speed into the 5 speed is relatively simple, the only trick is to get some shims made up to space out the gears (the gears in the 6 speed box are slightly thinner than in the 5 speed). I'm not sure about swapping 2nd gear... in my case I'll end up with better gearing by sticking with the 2nd out of the C56 anyway. I'll be talking to the mechanic doing the work in the next couple of days so I'll ask him about 2nd gear for you.
We know that four-wheel drive doesn't work in a racing car, and I proved to myself that it doesn't work very well for rallycross. I'm absolutely convinced that it has no future in rallying, either, even if the regulations allowed it. - Roger Clark (rallying legend), circa 1976