gearvendors/muncie m-20

[tukes23]

I anyone running a gearvendors overdrive behind a Muncie M-20? I am trying to see if they fit in the tunnel with no cutting and how well they function behind a manual.

[71RS/SS396]

I have one behind a turbo 400 in a 69 camaro it didn't require any mods to the tunnel , but I'm not overly impressed with its operation, not as much overdrive as I would like and clunks on down shifts. I also wasn't very impressed with their support. If I were you I would buy a tko-600, I have one in another car and I'm completely happy with it,easy install and plenty of overdrive. Just my .02