Thanks Paul!
Made a trip up to see Viatron on Saturday to collect a gearbox that he kindly offered me. Top chap and had a good chin wag about all things Ribble. I now know all about the 'cut' that my cordite might need too.
The gearbox was only really needed for the casing as mine was cracked. I was daunted by the prospect of rebuilding the box but after I'd built a quick casing jig and an hour or so of disassembly, it's in pieces and ready to swap!
I found the reverse idler was chipped and the main shaft has a bit of play but that doesn't matter as I'm going to use the GT6 internals which I think are in good shape.
So I guess it's as simple as assembly is the reverse of disassembly....!?
One replacement case to be cleaned up and ready to be reborn with an overdrive bolted to the back...
