The gears in my first attempt all slid on to the shafts just fine, the dogs all looked good and engaged nicely. On thing I did notice was that the teeth on the large gear on the lay shaft and it's corresponding gear on the mainshaft did not engage very deeply. When I took the shafts out of the box they were in, they looked great except for a little galling on a couple of the gears, gears, so I replaced those with better looking gears that were in also in the box. I admit (to my shame) that I did not carefully check to make sure that they all had the same number of teeth! As a result I had 14/28, 18/24, 21/21, 24/18 rather than what I ended up with in my second attempt, which was 14/28, 18/24, 21/20, 23/18.
Whatever the reason, I could not get attempt number one to shift properly and in 3rd and 4th gears they would rotate easily for a revolution or so before stopping. They could be forced to continue turning, but it felt very much as though something in there was rubbing very tightly against something else.
Anyway, today I finally got a good working gearbox all together. I think that I have found every difference between pre-'63 and '63-on gearboxes, since parts from both were available for me to pick from.
