My friends has a shop ,so he rebuilt mine, truth to be i dont mind the 2.9 specially for only off roading. With the 5.13 i think it would be more than enough for me but im getting the thought of boosting the 2.9 for a while. Running a small 300zx or 3000gt turbo with a fmu to supply gas. Over all the fmu takes the hassle off of tuning , a little extra hp for cheap. I have alot of parts left over from my boosted cars so i figured i might start putting something together. First tho i want to address the heating issue. While running on the road and on highway it doesnt overheat but when slow trailing it runs hot and the moment I turn it of the temp spikes and water starts to spew. I mean we did a slight porting to the heads and intake manifold but not too extreme. Im going to go pick up a radiator from an explorer and a new water pump and see if this helps cause I dont like running hot. Im thinking of a 2 in body lift for extra clearance cause i rubbed more than I was comfortable with in the front. We will see what happens, first radiator and water pump , then 2in bodylift 5.13's spool and locker and then maybe boost. Truth to be I was really surprised what this truck could do in 4low. Once the gears are in I think it will surprise me all over again. :icon_bounceblue: