I have a 2002 GMC 2500HD D/A SB/CC and I have had vibration throught the truck since I owned it. It was one of GM's engineering marvels. The dealer told me that it was a Harmonic Imbalance in the design of the vehicle. Mine starts between 44-48 mph then reappears at 70. I now have 265/75/16 BFG's. When I got the truck I had the Mich's which weren't a damn on wet grass let alone on wet roads. IMOP this is why they come through with a mellow tread MICH so you don't get that vibration. Once you switch to a more aggressive pattern you start with the vibration problem. This is what I have been dealing with. I love the truck but hate the shake. Oh BTW ask your dealer about the bulliten in reference to the Harmonic Imbalance. The knot heads at the dealeship I go to didn't tell me this until I bought a new set of tires. Got rid of them and put the BFG's on then after spending $700.00 on 2 sets of tires they gave me the "Oh BTW we have a tech bulliten that expalins what your experiencing ". I was hopping mad ![Mad](images/smilies/mad.png)
[ 09-23-2005, 03:42 PM: Message edited by: atvpilot ]
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