Any major rebuilds in the last 200000 miles. timing chain or manifold bolts or transfer case etc etc.
Oooooooh yes. Lol, where do I start?
3 Transmissions (1st was a rebuild at 100k (that was done half-assed, and left me stranded 1k miles from home), 2nd was a rebuild at 130k from a reputable nationwide transmission shop. That blew up 30k miles later, 3rd I said F it and bought a brand new transmission from GM at 160k so far so good.
Timing chain was replaced at some point, don't remember when. A few CV axles, did replace a few manifold bolts when the cat when out because they were stripped.
Valve Cover Gaskets Did a complete valve cover gasket set since it was starting to leak a bit (didn't warp the head luckily)
Diff and Carrier Bushings my power steering rack had a terrible leak and ate right through the bushings on the diff housing and carrier, replaced all those from
Outfitter Designs, now 100% better plus I replaced the whole steering rack
Then a few here and there misc things (shocks, tires, brakes, front/rear diff fluid changes)
But now I have a new problem nobody has been able to diagnose (not a driveline shop, dealer, anyone). The front diff was dropped and inspected and nothing, the transmission still in warranty was dropped and inspected from the dealer and they reported nothing was "wrong". Upon acceleration, the front end of the car makes a whining noise, as soon as you let off the accelerator it goes away. Frustrating because I know something is wrong but nobody can diagnose the problem
https://www.youtube.com/watch?v=kz8NaR-Zi9A