1939 Ford 3 speed top loader help

[joshhirst13]

Hey guys. I’m finishing up rebuilding my 39 3 speed top loader & I’m having issues with the gears getting tight & locking up when I tighten the bolts down on the rear bearing retainer. I can’t for the life of me figure out what is happening. The gears rotate smoothly & work properly, but as soon as I tighten the bolts on the retainer everything locks up. Any help or suggestions would be great. Attached are some photos of the rebuilt gears. Maybe I did something wrong. I’m using a 1933-34 bearing retainer. I tried using a thicker gasket & that didn’t help. I’m not sure what else to do.
Thanks
Josh