Got 271K+ on mine, with no issues. Transfer case can have a pump rub problem but Merchant Auto has a fix for that. You will need to get good, as clean as possible fuel to your injectors so a lift pump and/or Nicktane adapter plus additive in every tank will help them. It the price is right, go for.
Justin 2001 LB7 Silverado 2500HD LT CCSB 4x4.
EFI Live by Idaho Rob, 405K+ and rolling, Undercover Bed Cover, Vortex spray in bed liner, Westin steps, Bilstein Shocks, Road Master Active Suspension, M/A Pump Rub Kit, MBRP 5" Exhaust, Edge Insight CTS, K&N drop in filter, AirDog II 100 w/ CAT 751, LLY FF Housing w/ Racor, Running on LMM Blacked out Wheels & Michelin LTX M/S2 tires.
ADRENALINE TRUCK PERFORMANCE
Lincoln Diesel Specialties