Originally Posted by Hotrod Lincoln
However- - - -there's another issue you need to be aware of. The wheels on your truck are the Firestone RH-5's, the infamous "widowmakers" that have been implicated in dozens of injuries and deaths from exploding wheels. They're even illegal to run in some places. The problem is that the rims split in the middle, and it only takes a slight amount of rust damage or other deterioration to make them very unreliable and possibly deadly.
Jerry
Split in the middle like this
http://rides.webshots.com/photo/2903721360080251109pPFWcO
You should look for replacement 2 or 3 piece 20" wheels.

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-