hi guys, i have a m20 im building, major basket case but getting there. i have an a7 rigid rear wheel which fits up in place nicely even the locating groove on the backing plate fits into my m20 frame tab. i need to know if the a7 sproket will line up with my gearbox sproket on the m20 box? please help

email (option): bareknucklerestorations@hotmail.com

Not quite the same I know, but my M33 has a rigid B31 wheel fitted, my frame is the same as yours.