If you use the 3.55 converted enclosed rear end, you might find the original enclosed driveshaft 3-speed might have too high a 1st gear if you are loaded. I have used that combination without problems, and I might go back to that (to get the floor space from removing the 4-speed shifter).
If you use the 4-speed enclosed drive-shaft rear end, you can start in first gear or second gear, depending on the load you are carrying. This is what I now have.
