Originally Posted by nick bartle
Thanks very much for your reply, I keep getting people saying they are inter-changeable but I thought I'd ask the experts.
I will have to look out for an S1 gearbox now.
Cheers Nick
You can put a S1 box into a S2 but not the other way. It's only the center casing thats different you could take the center casing off your old s1 box and put it on to the S2 box if needs be its not to hard.