I don't think that you need to go to a 4.5 lift either, if this is your DD you might run into issues down the road with that much lift(not to mention the cost of doing it right), I do love the look of 37,s on 4 doors as well tho haha. I agree with what was saidd earlier that you should have no problem with 37's with the flats on your 2.5, maybe you could go 3.5 springs if needed at max, that would prob look good in my opinion. I have a 2.5 rock krawler on my 2 door with 35's. Next go around(a long time away) I might go flat flares and some 37" Pitbulls, but that would proboly be if my Rubi becomes my weekend driver/toy. Do what makes you happy, but do a lot of research before you make major changes because the last thing you want is to spend all that money then run into problems and not be happy. Hope this helps! Good luck with your build, and lets see some pics to get an idea of what your working with.

 

Thanks! It sure looks awesome!

 

living in Montana a real tall jeep is not ideal for camping as many of the best spots have limited height access. Lots of downed a low laying timber across the roads and trails. This past summer my mild lifted 4 door was not able to get some places because it was too tall. Just something to consider too. There is no way a RTT would work in a lot of places because of this too. That all said many 37's and 4.5 lift look great . For great camping I will stick with 34's and 2" lift.

 

Here's mine.