i bought this truck for $500 its unknown miles with a rebuild on the engine(22R) and i have know idea who did it, but it seems like they did nothing to the top end. i have to adjust the valves every month. I've been told by a mechanic that the 22R has a tendency to loosen the intake valve adjustment quickly. So far it runs okay with few runability problems. Ive done the front rotors and pads(OEM) rear wheel cylinders and shoes; shocks, 5 spd conversion, valve cover seal grommets and half moons as well, i threw in NGK V-power plugs with NGK wires, im running brad penn 10w30 with wix filters only(fuel air oil). i had to fix the exhuast. went with a fabed up magnaflow cat with a generic 3 chamber muffler. painted the valve cover bright red. and painted the truck and wheels flat black. all this in the last year and a half.