1986 GMC K3500 4x4 Dually dump truck. Truck runs awsome. I have put tons of money into this truck includes new starter, alternator, 2 new batteries, new plow pump and motor. The bad is the dump body is very rough, the pto and piston work great but the body itself is beat badly. The drive train is a power house it is a 6.2l diesel with a granny low 4 speed and 4.10 gears. Truck starts every time...