1989 GMC Sierra 1 ton 280,000 miles. Finally going to retire it from towing duties this year. Original Engine, Transmission and Rear end. Never a rebuild. Has had a few hoses, 1 radiator,
a few sensors, a set of injectors two ball joints and 3 water pumps. Most of the that is from towing for over half of those miles.
My previous 1991 S-10 Blazer made it to 260,000 miles before I sold it. All original there too, Minus 1 intake gasket at 140,000 ish, 1 oil pressures sending unit, 2 water pumps and normal maintenance items.
Do some of the other cars in this thread still have the original timing belt and water pump?