Gene, the 2 outer ones look like the ones used on the pre war series "A" bikes.......Check the rotation too as this could be 50% wrong. Clockwise in and clockwise out.
I have only ever seen the short speedo gearbox used on series A machines and looking at the collection of A photos I have I cannot see any with a long one fitted. My A Comet has a short one fitted and it aligns up with the speedo perfectly.Gene, the 2 outer ones look like the ones used on the pre war series "A" bikes.......Check the rotation too as this could be 50% wrong. Clockwise in and clockwise out.
I imagine the open D`s were the same as C`s, but the enclosed bike had the longer thread, but on the other side of the body, with opposite hand gear cut. This to enable the run of the cable to go under the handlebar cowl.Was that all 'Ds" or just the enclosed models?