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SSsssteamer · 02-05-2019, 07:50 PM

I had the same symptoms with our 1930 AA stake bed. It turned out that the universal joints on the drive shaft were the problem. Replaced them and the problem was gone. The information that indicated the problem is the speed of the truck dictates the intensity of the rumble and not the speed of the motor. also by pressing on the gas, the vibration gets worse at 25 MPH and up. Our AA is the long wheel base 157".

02-05-2019, 07:50 PM	#13
SSsssteamer Senior Member Join Date: Nov 2010 Location: Sedro-Woolley, WA Posts: 1,023	Re: More ?'s about vibration... I had the same symptoms with our 1930 AA stake bed. It turned out that the universal joints on the drive shaft were the problem. Replaced them and the problem was gone. The information that indicated the problem is the speed of the truck dictates the intensity of the rumble and not the speed of the motor. also by pressing on the gas, the vibration gets worse at 25 MPH and up. Our AA is the long wheel base 157".