Doug.
The first one I found got sold yesterday.
Search in ebay motors " 1948-1954 Chevrolet Truck 4 Speed Rear Bearing Retainer Open Drive 1950 1953. Listed by Vintage Parts Kings. Has the speedometer gears set with it. Price is a little high.
Jeff - If you look at the
pictures close up, the tooth count is not the 7 tooth drive gear and 20 tooth driven gear that Doug needs from what is visible. They look like the 5 tooth x 13 tooth gear set similar to your recent acquisition unfortunately.
I'm about to head out to KCMongo's shop to see what he may have amongst his goodies. Wish me luck!