2001 3500 4x4 5.9 cummins , ranch hand "deerslayer" front bumper , k&n air intake , banks big hoss system with tuner, stainless 6" stacks , fass fuel system, oversize radiator, 2" wheel spacers between rear duels, auto trans with oversize torque convertor and aftermarket cooling trannie pan and rear pumpkin cover. Lucas Synthetic throughout since 85,600 ,has 290,761 as of 07/16/2018 used as welding rig truck everyday!