[MattHelm21]

I agree, if proper maintenance records can be found. We had the 2004.5 LLY duramax/Allison combo in the Silverado. Well over 100K when we traded it in last year. It would still be going strong today if it was't for the harsh winters we get here and corrosion of the brake lines and some part of the wiring harness leading up to the trailer brakes. Just remember that some features become unavailable on older trucks. Nice to haves like the factory exhaust brake or the integrated electric brake controller were not available in 2004 on Chevy 3500's. Good luck.