Hey guys. Bought a 4 speed Saginaw trying to figure out what shifter and rails I need to make it work in my 64 no console and bench seat.
When I bought my current '63 Impala convertible (bench seat), it had a 4 speed Saginaw (origin unknown, but certainly not a full size '63). It had a Hurst competition plus shifter body and appropriate linkage rods. I do not know any specifics on the linkage.
When I swapped to an AutoGear M22W 'Muncie' transmission I also used the Hurst Competition Plus with the 'installation kit' for the Muncie.
What I did discover was the shifter bodies for the two transmissions were identical.
Highly recommend the Hurst Competition Plus over the OEM GM shifter. That was in 2014, I do not know what Hurst sells now.
I've attached a pic of what mine looks like. The shifter plate is from a '61 SS (available from Show Cars, a similar '62 version too) and the handle is a bolt on (a la the Hurst) after market. What you can't see is the Competition Plus under.
If you need parts, I've had exceptional service from these folks:
I replaced EVERYTHING but the pedals (fork, z bar, push rods, springs, EVERYTHING) and their parts fit like a glove.