I connected an external spring to pull the 1st/rev shifter arm toward the upward/reverse position to overpower its being pulled out of reverse when the overdrive is not locked out with the cable. That did not work. On my column shifter any movement done at the transmission does not carry to the shifter box. It only locks then must be unlocked from under the hood.

Still thinking and trying things.

Edit: I put a side cover assembly for this transmission in the 'Wanted to Buy' section.

Last edited by Robert Crandall; 12/12/2024 6:58 PM. Reason: Added information

1950 GMC 100 Panel Truck, 1958 270,
3-spd Saginaw with BW OD,
3.73 12 Bolt Differential from a 1966 C10,
Front Disc Brakes
Bought it in pieces 9-1976, driving since 6-1978
Follow in the DITY