The gear is held on the shaft by the u-joint. You will need to lower the torque tube and the u-joint to gain access.The tranny side of the u-joint is held in place by a bolt going onto the shaft. Maybe you’ll get lucky and just have to tighten the bolt. There is an excellent video on YouTube by Jayhawker on the SM318 rebuild. Its in two parts. Look up “Part 2: 1937-1954 Chevrolet 3 Speed Transmission Rebuild - Reassembly” and between 30:33 and 32:15 shows the gears being installed.
Hope this helps!
Last edited by Phak1; 01/10/2021 2:17 PM.
