Bruce,

I hope someone replies - you have a rare truck and there might not be many members who have done that "first-hand".

You have most likely checked a Shop Manual, but the removal/installation information is incomplete.

You might want to peruse the 1947-1955 Advance-Design trucks Gallery.
http://www.stovebolt.com/gallery/gallery%2047%2055.html

Try to contact members with Suburbans. They might be willing to discuss this.

Good luck - please let us know how this proceeds/progresses.