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Vibration under acceleration

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Berf

Member
2nd Gen Owner
V8 Engine
4 Wheel Drive
Joined
Nov 24, 2020
Messages
48
Reaction score
6
Location
USA
I have a 2nd Gen 4WD V8 that started out with just a very light shudder under heavy acceleration. I went on a long trip and after several hours on the road, the vibration starting getting really bad. Felt like I was driving over rumble strips any time I pressed on the gas even a little bit. If I let off the gas, go downhill, or coast it goes away. I got the truck home and checked out the carrier bearing and I don't see any obvious problems, and the rubber around it looks ok.

I'm wondering where I should start looking, and what is the best way to isolate the cause. Is there a common component failure that causes this that I should check out first?
 
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