Old Magnet, good to see you over here ! Hope all is well out your way !
Who was the fellow that did a complete ground up build of a D2 up in Canada, that converted to D3 U/C ? Probably archived in ACMOC or ACME, but the photos were really informative. It was a great thread to follow. He changed to the D3 pitch, and had to do some modification to either the track frames or the rollers to get the right fit,I really forget now, but was a nice job, worth doing as it was not all that complicated, mostly work, of course that was a really nice shop with machining capability, the benefit was now you can use D3 components which are available, for the longest time it seems no new U/C parts were available for the D2.