Bought a used 2005 Tahoe with 112k miles in Aug 2016. It's been in the shop since Nov 1, 2016. Unknown to us upon purchase, the transmission was rebuilt. They of course denied knowing, and would NOT help in any regard, except of course to replace it for 2x as much as anyone else. Tahoe's should run without major problems for 200k or more. I would recommend buying only from truly reputable dealers, not just the ones that sell lots of vehicles. There is a reason you can't leave a review on Trenary's website. Their 1.8 outta 5 star rating is terrible, and deserved.