This website lists many of the problems in the newer GM trucks, and how the dealer will fix them.

http://agmlemon.freeservers.com/index.html

3/4 of the stuff on his list applies to my truck. Hope this might help some of you guys!!

 

Damn they must have been looking at my truck. I love my truck, sometimes i dont know why, but damn the really screwed the pooch on these. I am a chevy fan guys but to tell you the truth I never had this many problems with my 99 dodge 4x4 or my 98 f150 with triton. My truck has the two shakes at those speeds I always thought it was the odd size tires i ran.

 

Well so far at 6000 miles I've had four of those problems. The power steering makes a straining noise at idle. The transmission whines like a big dog at 25mph. Oh, and of coarse the piston slap at start up. <img border="0" title="" alt="[Sad]" src="gr_sad.gif" />