You can also use a large pipe wrench with some padding on the pinion yoke if needed, again let it hit the ground to hold it.
Or usually an impact zips the nut off quite easily. (but you still need a plan to hold the yoke for retorquing by hand)

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-