I have a 16' with 100,000 miles. Transmission always making funky noises, making me paranoid all the time. A/C condenser went out recently, searching online seems to be a common problem. Brake booster recall, back driver door lock not working, moisture got in the HID headlight and fried the circuit ($2200). Also have a 16' Surburban with 60k miles, only real issue with it has been injector problems, hopefully deleting that 4 to 8 cylinder swap will help with that..