Originally Posted by tclederman
If the transmission is an open driveshaft SM420 4-speed, a 54 or earlier SM420 rear cover and ujoint assembly for an enclosed driveshaft can convert the later SM420 to work with an enclosed driveshaft.
Thanks Tim. Got my head all wrapped up now. smile

1952 5-window - return to "as built" condition | 1950 3100 with a 235 and a T-5 transmission