Don't let people who have little to no experience with 4banger Jeeps tell you what you "should" do. Having owned both the 6 and 4 cylinder wranglers, I can tell you offroad there is little to no difference. Now on road is a different story. Highway driving is where you'll see the biggest difference. The 4bangers are very lacking in top end as well as any get up and go.....but then again, the way I look at it, it's a Jeep...not a race car.

I have a 4banger TJ with 33's, steel wheels (very heavy), 5" of lift, and stock gears....and although it's slow as christmas....it's bearable. Top speed is around 70mph on flat land. Up hill it's considerably less. Gas mileage is horrible....around 13mpg. I plan on regearing to 4:88's which should add quite a bit of get up and go and I'd highly recommend it to anyone who plans on running larger than 31's. Regearing will by far make the largest difference...other bolt ons offer little improvement.

I take mine offroad quite often and it performs like a champ...has no problem whatsoever keeping up with the 6's. I've taken it up 70 degree inclines and through 4 ft. mud puddles without difficulty. They're easy to work on and parts are readily available. How durable they are really depends on just how much you abuse it and proper maintenence. As a trail vehicle and around town vehicle, I'd say go for it....if you need to commute more than 40 miles each day....I'd think twice. Anymore questions, feel free to ask.