Finally turned over 10,000 hours on my 05 Silverado. 228k miles and a ton of idling for AC and heat. It's been used as a land surveying truck since around 100k miles (before that it was the owners personal truck). It's been the best truck the company has owned, very infrequent repairs. The usual instrument cluster gauges failing (I use torque pro on my old phone so I have all I need until the fuel gauge fails).