Hi all,
The spacer I checked on one of the gearboxes did not have a 5/16" or 8mm keyed bore. Instead, it was much smaller, almost around the 1/4 or 9/32 range and would not fit on the shaft. I had to drill it to 5/16" and trim the key slightly to fit eveything in. I don't have access to the internals of that one any more, as putting it together and not having the thing seize or grind terribly (was not a spacer issue - appeared to be small manufacturing flaws causing everything to align in only one orientation) was a two hour ordeal!
The QC on the gearboxes seems pretty interesting to say the least. I hope they hold up under use.
