Originally Posted by Mike B
Could one of the detent balls have rolled out into the shift rail channel keeping the rail rod from traveling all the way?

If everything was working before you took the tower off, you need to take it off again and retrace your steps.

Mike B smile

When you get the top off make sure you can more the 3 -4 syncro into 4th. Rule out that go back over the cover. Do you have a service manual?

BC
1960 Chevy C10 driver 261 T5 4.10 dana 44 power loc
1949 GMC 250 project in waiting
1960 C60 pasture art
Retired GM dealer tech. 1980 - 2022