Similar discussions in the past people have insisted it is or can be just a removable spacer on the front hubs. Don't think I've seen any pictures to prove it though?

I'll be watching, perhaps we can clarify and answer this question once and for all.

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-