The P-30 axle as far as weight ratings should fall between an original AD 1.5 and a 2 ton axle.
But just looking at it is near twice the bulk of an original 2 ton axle.

I have no problems using one in my truck and still calling it a nominal "2 ton", and will register it for 16,000 lb as printed on the door tag.
But a P-30 axle is not a huge improvement over stock as far as weight capacity goes. But then the stock frame is only good for so much too...

Grigg


•1951 GMC 250 in the Project Journals
•1948 Chevrolet 6400 - Detroit Diesel 4-53T - Roadranger 10 speed overdrive - 4 wheel disc brakes
•1952 Chevrolet 3800 pickup
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"First, get a clear notion of what you desire to accomplish, and then in all probability you will succeed in doing it..." -Henry Maudslay-