i bought my truck in 2005 w/ 84k and had to replace the pinion bearing myself, 211k and still good. I have an airaid intake,jba shorty headers w/a 3in magnaflow exhaust. I have also replaced the front end bushings w/urethane and run kyb shocks. tires are 311050 goodyear wrangler duratracs and have been a lot more durable than the dunlop mud rover radials i use to run.