I've never had any difficulty going where the TJ's, YJ's and 2 door JK's go, I just scrap my belly a lot more :P
2003 Patriot Blue Wrangler SE - RCX 2.5" Kit on 31x10.5 Firestone M/Ts and stock the rest of the way.
2007 Flame Red Wrangler Unlimited X - Skyjacker 4" Kit on 35x12.5 Cooper Discovery STT(My Build Details)
So, I found that my 4-door JK is different when taking it off-road than my previous 2-door TJ, but the differences are both good and bad. Traversing hills is much easier and much more stable. The downside is rjounding corners and making tight turns. As well as being concious of high centering on obstacles. I do enjoy my new 4-door because of the extra space for passengers and gear.
The longer wheel base takes away some breakover angle but it is GREAT for hill climbing. Everything has pros and cons...just learn the limits/capabilities of your particular rig and you'll be able to go anywhere you want.
It is also worth noting that my high steer kit tightened my turning radius significantly to the point where if I am in loose gravel, mud, or another surface with poor traction, I can drag the rear of the Jeep around sideways when I turn the wheel all the way. I am talking about the ability to do this idling, not stomping the gas to do it. It turns tighter than it did when it was bone stock.
__________________ 2014 Copperhead Pearl Unlimited Sahara in progress
What about power? Ive heard the new v6's are dogs with the two door jk's what about the 4 doors and are there any mods for the engines?
I have a 6-speed Rubi, I find the power adequate, more power and people would be getting themselves into trouble and gas mileage would go down the tubes.
People complain about two things mainly: not enough power and poor gas mileage. They are mutually exclusive, you can't have your cake and eat it too. I get 19 mpg on hi-way trips and think that's pretty good for what it is, better than my TJ and the JK 4 dr has a much bigger gas tank for fewer stops for fill-ups. Try doing what a Jeep can do with a Smart Car.
If I want to go fast I drive the Viper. I do admit, it would be fun to have a JK with a HEMI to drag SUV's like Cayennes, Mercs, and BMW's.
2009 JK Rubicon 4-Door
2006 TJ Rubicon Unlimited