Have you thought about a trans swap? Clark had some OD models. An NV4500 may work too.

As far as rearend swapping. I can’t say if you’ll find the same bolt pattern, but an Isuzu NPR rear may work. They had gear ratios up to 3.54 down to 6.17.


1954 3600 Chevy Truck
"The Fake Truck"
In the Stovebolt Gallery
More pix on Photobucket