Paul,
Do you have a '51 1/2 ton Chevrolet or GMC truck?
Tim
I just checked your profile and you have a Chevy. It is my understanding that a transmission mount was standard on 1/2 ton Chevy (torque-tube) trucks until 1954. In the 1954 Chevy 1/2 ton truck, both the motor mount location and the motor mount design was changed to match a change in the rear motor mount frame cross member. It is my understanding that 1954 is the first year that the 1/2 ton Advance Design Chevy truck transmission did not have a rear mount.
I do not know about GMC motor/transmission mounts.
Tim
