I don't think those gears are any good to you.
If they offer anything faster than 4.10 ratio it's probably not for your axle. Although some people claim that back in the day there was an aftermarket 7.73 ratio available.. I've never seen a picture of such gears.

The Eaton HO52 and HO72 axles aren't usually refereed to as "10 bolt"

A later model lighter weight GM axle is often called a "10 bolt" and I think that's what those gears are for.
http://www.crankshaftcoalition.com/wiki/Rearend_identification

•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-