My 4 banger YJ is used mostly for street with some light trail and NC beach crawling. I'm building a TJ 6 cylinder with Clayton long arms, atlas, 35s for more serious trail use, and I am going with Ford 8.8 (Super88) in the rear and high pinion D44 in the front. I have some 1 ton axles (Sterling 10.5 rear and HP D60 front), but I'm trying real hard not to turn the TJ into a trailer queen. It would likely sit around quite a bit more if I did the tons, plus I'd want to get 37s+ and run full width axles (wider trailer required or change tires alot) and then I'd want a v8. Stan's comments make me think I'm going in the right direction. I am in the process of moving the rear axle back about 4" on the TJ, but the project stalled out when my fabrication buddy had 2 unplanned kids. I gave him too much beer after welding and his wife took advantage of him... I promise to get back on the TJ project!