1991 Chevy Astro 2wd vibration above 50mph

Asked by Mar 07, 2014 at 01:40 PM about the 1991 Chevrolet Astro AWD Passenger Van Extended

Question type: Maintenance & Repair

I have balanced all 4 wheels and checked front end and nothing is loose. Also there is no
movement on the drive shaft. What is going on?

1 Answer

16,025

If you can, change out the tires and see if this stops the vibration above 50- MPH. I replaced the low mileage tires on my Corvette that were 11 years old and it stopped the vibration above 65 MPH. I was told the tread was starting to let lose inside the tire itself. I had the tires balanced three times and even changed tires with rims to no avail. New tires and the vibration is gone. No vibrations up to 135. It handles a ton better. Check wheel bearings also and the idler arm.

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