Question about 1999 Chevrolet Silverado 2500

2 Answers

Front end shakes

When i approch 70 km/hr, truck shakes violently until 90-95 km/hr, i changed the pitman arm and shaking did not stop. What else should i try?

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  • yadayada
    yadayada May 11, 2010

    check for frame rail cracks around the steering box

  • Keith Heavilin
    Keith Heavilin May 11, 2010

    Have you had your tires balanced?

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Is there a chance that it is the torque converter or an imbalanced drive shaft? Check the tranny and torque converter first, then check the balance on the drive shaft.

Posted on May 19, 2009

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  • Chevrolet Master
  • 6,982 Answers

We call this "death wobble". It has many causes, sometimes all working together, none of which would be "critical" by itself. First, alignment...Adding a bit more positive caster sometimes cures this. Next, examine every part of the front suspension including all bushings, shocks and any steering dampening devices. This is where a small amount of play in every component becomes a large amount of play when added together. Last is tires...Some tires are prone to allow flexing out of shape and not recovering. Many times just putting front tires on the rear, rears on front is enough to cure this. I have encountered this several times over the years and have used all of the above methods of curing it, at different times, sometimes all together sometimes just one or two changes. It worked before, you can make it work again.. I know that this answer seems like "throwing everything at it" but generally that's what needs to be done unless you see something obvious.
good luck

Posted on May 19, 2009

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