Many will say the Dana 44s in them are shitty because the .250 wall tubing used on the front axle. I’ve personally seen stock shafts in them run 37s on heavy 4 doors but they also drove like they had some sense. Bigger u joints and stubs shafts than any d44. However ten factory is the only company that I know of that will warranty flanges on JK rear shafts, they do get bent some times and cause some brake noise. Truss it ASAP, JCR makes a very low profile truss, artec’s truss you’ve gotta bump stop to keep it out of the pan. I’ve bent a housing from being a dumbass jumping mine with 38.5s on it. 2012-up auto JKs can’t run an auto locking diff in the rear if you every decide to go 1 ton, it’ll send it into limp mode and you can’t run a 4 spd atlas. Manual trans JKs are stupid after the engine, as long as you keep wheel speed sensors on a manual JK, whatever trans/tcase and axles you want to run is up to you. I thought about doing a 231/300 doubler in mine one day after I swap the tons in mine.
Pay attention to spring length if you’re keeping the coils. A lot of manufacturers can’t run more than a 11” travel shock without the springs unseating, personal recommendation is Currie springs or coilovers. You don’t need “long Arms” you can get plenty of flex out of the stock length arms, deff replace the housing bushings with johnny joints, those deteriorate rather quickly.
You know our county is trying to get rid of emissions so an LS swap could be a lot easier if you gut it but then you’ll lose your creature comforts. Be smart about your wheel and tire combo, the lighter the better. Don’t add a shit ton of armor, or if you do go aluminum. It’s expensive but the more weight makes that 4 door feel sluggish as hell. I’ve been helping a guy with a 2010 4 door auto and his with 5.13s feels like you’re riding a snail compared to my 2 door 6 spd on 38.5s with 4.10 gears.
Just ship it to gen right and have them throw their $20k suspension setup on it. You’ll probably not wheel your buggy ever then. I’ve still yet to cut out my single triangulated 4 link rear brackets and 3 link front brackets for my JK, but I’m still gathering parts for all that.
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