NBS Vmax Help

Discussion in 'General Chevy & GM Tech Questions' started by 07 max, Feb 4, 2009.

  1. 07 max

    07 max New Member

    I need help with a new vortec max 4dr chevy. I am having two problems that could be connected. 1st when I load the front of the truck with a hard stop and then let off the brakes and move forward it thuds real hard in the rear end.It almost feels as if the rear disk are catching and then releasing, but i don't think it ios the brakes , if that makes any sense. 2nd when I am above 90 mph it feels as if the drive shaft is about to come apart I get a scary vibration in the seat of my pants. I need to some help diagnosing the problem.
  2. spazzoid13

    spazzoid13 Rockstar

    why are you going above 90mph anyway?
  3. 07 max

    07 max New Member

    I like fast trucks

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