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Old 10-29-2018, 10:40 AM   #41
OutlawDrifter
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Join Date: Aug 2012
Location: Northeast KS
Posts: 1,777
Re: 1989 GMC K5 Jimmy SLE Daily Driver

Quote:
Originally Posted by rideair View Post
The old vibration issue!

I guess one question would be, is it in the wheel or on your backside (butt)? You can always try swapping the tires around (front to rear)to see if it's in the tires even though they are new (if in the wheel).

Would also suggest rolling all the windows down, get up to about 35mph, put it in "N", and turn if off and let it slow roll to a stop and listen very carefully. You could have a bad wheel bearing or a brake caliper.

Years ago, I had the same issue on a Landcruiser, took it into the shop told them I needed the drivers wheel bearing replaced. Was told after their test drive "It's not bad". After putting it up on the rack and using a scope to listen, they hear the bad spot in the bearing. No more vibration!
Definitely a "butt" vibration. Nothing in the steering wheel. Vibration has been there since I drove it home. Very well could be in the rearend itself.
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1999 GMC Suburban K2500 SLT, 454/4L80E
1991 Z/28, 6.0L/T56
1949 GMC 250, S10 Frame, 6.0L/4L80E

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