"What open drive pumpkins will swap into 53 half ton
enclosed driveshaft rear end?"
Answer (I think) : none will swap in (If I am wrong, we will quickly see responses)
Drtheo,
If all you want is a Ring & Pinion that will give you higher speeds at lower RPMS, and you want to use the "rear end from a 53 half ton", consider KEVINSKI's advice/post:
- keep the SM420 transmission,
- keep your "new" rear end and "new" brakes
The 3.55 R&P is readily available from several vendors (and from eBay) - and it is immediately available directly from the importer, Mothertrucker.
Buy the installation kit (from Classic Parts, for example) - it includes are necessary parts and at least one of the necessary tools.
https://www.stovebolt.com/techtips/axles/355%20gear%20swap/It is the best "hidden conversion" on my 1/2 ton enclosed-driveshaft 1954 trucks.
