I heard a story of someone buying a military truck at auction. Drove it home, but had a terrible vibration. come to find out one of the rear tires had a new flap in it... still packaged up and just tossed in the tire loose.

Probably not your problem, but interesting.

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-