Need help with vibration - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Orence1 · 09-21-2003, 11:23 PM

Just got the 72 Cheyenne LWB on the road. New BB with a built TH-350. I am getting a nasty vibration/shimmy that I did not have with the old small block set-up. Slightly noticeable at 35mph but as I get up to 60 it gets real obvious. My first thought was a bad tire. Had the fronts checked yesterday and they were OK. Backs are brand new. It feels like a tire going bad. I have had that happen on other cars I have owned. I am wondering what else it could be if it is not the tires. Any suggestions appreciated. Thanks in advance.
Larry

09-21-2003, 11:23 PM	#1
Orence1 Registered User Join Date: Jan 2000 Location: Bothell, WA Posts: 548	Need help with vibration Just got the 72 Cheyenne LWB on the road. New BB with a built TH-350. I am getting a nasty vibration/shimmy that I did not have with the old small block set-up. Slightly noticeable at 35mph but as I get up to 60 it gets real obvious. My first thought was a bad tire. Had the fronts checked yesterday and they were OK. Backs are brand new. It feels like a tire going bad. I have had that happen on other cars I have owned. I am wondering what else it could be if it is not the tires. Any suggestions appreciated. Thanks in advance. Larry



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