Muncie Transmission for sale | Only 4 left at 65%
· Rebuilt muncie sm420 4 speed transmission. Sold at 400 Rebuilt muncie sm420 4 speed transmission for sale. came out of a 1950 gmc 1/2 ton with a 235. has a new 3rd gear and it also has new bearings and gaskets all the way around. nice clean transmission for its age. ready to