Originally Posted by Fox
To add to Kevin’s question: could a worn synchronizer cause a transmission to be difficult to shift OUT of a gear?
Could an incorrect oil do the same?
No not out of a gear because the main shaft and gear are already meshed, and are turning at the same speed.

Last edited by sstock; 10/30/2019 1:38 PM.
1953 Chevrolet 3100
261 cu inch, sm420, 3.55 rear, torque tube still,omaha orange, still 6 volt, RPO green glass, side carrier spare, all done
In the DITY Gallery
Video of the 261 running

1964 GMC 1000
305 Big Block V6, sm420, the next cab off restoration