you can put a newer chevy 1 ton runing gear under it and than put 19.5 wheels on it wich would be firly close to same size
or you could find some newer chevy 1 1/4 ton trucks that had that same old 10 and 5 cominatin so you could use orgnle wheel/tire

for my 46 I plan to use runnig gear out of
85 chevy C70 that has dics all around and narrow tham to fit my truck it also has 5.40 gears wich will make a littel better speed on hiway with the 270 gmc I am building for it


Luke Dahlin

1946 Chevy 2 ton
1966 Chevy 2 ton
1969 Chevy 3/4 ton 4wd
http://www.stovebolt.com/gallery/dahlin_luke_1969.html]1969 Chevy 3/4 ton 4x4