Dltalfa,

I don't have a direct source for an axle, but this info may help.

According to a search here: GMpartswiki the March 1954 Parts and Accessories Catalog P&A 30 identifies that the "I beam" front axle for all 1/2 tons from '41 - '54 use the same part number (3656872). See attached screen shots below.

This means basically any unmodified '41-'54 1/2 ton can be a source for a replacement axle. Of course depends on the condition of the axle. So in answer, YES a later model axle (through '54) will fit your '46.

Good luck in your hunt. thumbs_up
Attachments
Half Ton Front Axle Application list 1.png (366.83 KB, 110 downloads)
Half Ton Front Axle Application list 2.png (309.77 KB, 107 downloads)

~ Dan
1951 Chevy 3 window 3100
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