slick truck. from all the threads ive read on here the gen 2s do not respond well to a catch can. the theory of the cans are great but at the end of the day if the ford engineers thought the engine needed a catch can they would have installed it prior to mass production. With that being said if you start messing with the motor, tune, bigger tubor, air intake, and so on then sure you could benefit form one at the 100k mark. If the motor is at ~40K now then it should be good. as in any of the known issues would have shown face by now. best thing i would suggest is put any money you want to dump into suspension, bumpers, radios....leave the motor alone, just keep up with oil changes and topped off fluids and youll be good to go.