My wife has gingerly cared for and driven her 07 and loves it dearly.
200k miles is upon us and we have replaced all suspension parts, the break hoses and calipers, valve cover gasket, transmission filter, and battery terminals. Maybe more, but the point is that the body, frame, suspension and most of the engine is in great condition. Starts up and sounds nice and we've always been on top of the oil changes as well as the previous owner.
The only issue is that the transmission fluid is black and even after a filter change the car lugs and has issues shifting when she drives more than a half hour.
We are going to buy a manufacturer rebuild from the near by Chevy dealership for $2,500 if we can read about how to swap the transmission. We have a PDF manual, but I haven't had much time to look since we've made this decision.
Does anyone have advice/experience to help guide us?