I had 370k on the stock motor (3.0 V6) before rods were done then the top end was just done at 396k so with the proper care they'll last you a while I personaly like my V6, I get 20 mpg and have more power then any 22re that I know of, with just an intake and headers it breaths alot better and makes quite a bit more power. The 4 cylinder in these trucks is the 22re which is fuel injected were as the 22r is carb. They last pretty much forever. Pretty much everything on my truck is original aside from the motor, shocks, brakes, CVs, various lights and small stuff like that. They really are bulletproof and last forever with proper treatment. I'd stay away from ADD or auto hubs and go with manual hubs as that eliminates one of the weekspots.