I was just looking at one of those today, as some one stopped by with a Toyota truck and straight front axle.
My first thoughts are that it is about like the IH Scout box, but not quite as big or strong looking.
It also has the pitman arm pointing rearward and the Scout is forward, so the Toyota box would be mounted farther forward and then could interfere with tires.

My 48 2 ton with 9R22.5 tires and Scout box has plenty of room for the left front tire in a right turn.

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-