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  1. L

    Need major advice on sons 1999 Yukon

    Thanks again guys, I'll keep this post up to date. Going to check the dizzy today. Already removed pass side valve cover, didn't see anything out of place, no broke Springs or bent rods
  2. L

    Need major advice on sons 1999 Yukon

    Okay, did as you suggested , the only movement at input shaft was about an 1/8" rotational no side to side or in and out movement, was about the same whether rear tires were raised or on the ground. I also checked the transfer case side, video below. I know I need u joints, exhaust system, a...
  3. L

    Need major advice on sons 1999 Yukon

    Okay, did as you suggested , the only movement at input shaft was about an 1/8" rotational no side to side or in and out movement, was about the same whether rear tires were raised or on the ground. I also checked the transfer case side, video below. I know I need u joints, exhaust system, a...
  4. L

    Need major advice on sons 1999 Yukon

    Thanks again guys. He only paid $1200 for it so worse case scenario we'll find something else for him to get to work. I feel bad because I test drove it, like I said I'm no mechanic but I'm not clueless, the only issues with the truck at the time was a slight miss at idle, truck had plenty of...
  5. L

    Need major advice on sons 1999 Yukon

    Jacked up the rear to get tires off the ground, could not duplicate the noise or vibration, I'm assuming because there was no strain on any of the components with the tires off pavement Lowered it and took it around the block, ran very sluggish, applied more power and started getting a bad...
  6. L

    Need major advice on sons 1999 Yukon

    Different view
  7. L

    Need major advice on sons 1999 Yukon

    Thanks for the help. It seems that our trans mounts are located in different areas, either it's a change they made in mounting location or mine is in the wrong spot which wouldn't surprise me judging by some of the other things I'm noticing
  8. L

    Need major advice on sons 1999 Yukon

    Thank you very much for the reply. Is it same to assume what I'm hearing the trans or the T case contacting the under carriage or the crossmember? The front mount that was missing the bolts seems trashed so I'll be replacing that also
  9. L

    Need major advice on sons 1999 Yukon

    I posted a long list of issues in the drive train section about a 1999 yukon my son just bought a few months ago. I'm a ford guy so I'm learning, main issue is the trans mount had no bolts, fixed that but having same issue, LOUD noise mid underside of vehicle, sounds like someone is smacking...
  10. L

    Need major advice on sons 1999 Yukon

    My son purchased a 1999 Yukon just 2 months ago. Truck has 200,000 miles on it so we were expetting to have to put money in it but didn't expect the amount of issues it has to pop up so soon I test drove it, had a slight miss at idle but besides that it seemed like a good deal, engine ranor...

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