Your axle should have a code stamp on the housing. It will start with H for '50, J for '51, K for '52, etc. I think for the half tons.
Check

http://chevy.oldcarmanualproject.com for details.

My 51 had a 50 axle, with Hucks, that's how I figured it out.


NHluvstruck...
1951 3100 5-window,.sold, regretted
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