Mods to TT6, TT8 for MT75 gearbox

[Matthew]

Hi

I'm using the MT75 gearbox changes to the transmission tunnel that Chris posted before they were wiped out and can't find any details on what to do with TT6 and TT8. The 2 diagrams show different construction in this area so don't really help.

Looking at the cutting length for MT8, and the drawing that showed the uprights and top rails, I think that MT8 should be butting up against the side of TT8. If it does then I assume TT6, TT8 have to be longer and chamfered at 45deg like the MT6/MT7 assembly.

Has anyone done this and can confirm it is right? Also what length did you use for the revised parts - I come up with 165mm for TT8 and 275mm for TT6.

Matt