Thanks Al the ratios I have right now Are really nice and if I could just do the 6th and maybe the R&P we could have a cruising gear at 70mph of 2500rpm
So you could put a subie 6 speed but it is a few inches longer and you would need a cable shifter.
You probably would need to lengthen the body like IM-6 frames unless the cross member in the I M frame could be opened and somehow made stronger as you need 4 inches more .
Australia does it