Originally Posted by froosa
I am living in Germany I call home Texas. I will be doing some autobahn driving I am concerend about how a lift kit will effect my gas mileage and what effect if any a lift kit has on the handeling of it.
I would avoid the lift. It will ride
better, as the shocks and springs are much better. it will handle
much much worse. I can tell you it will not take corners like it did prelifted. You can still do 80 on the straightaways if you give yourself plenty of room, but a KJ will not corner very well lifted.
If you do lift, go with an OME spring lift that is 1.5 inches only and get wider 245/75/16 tires to help stability. Different rims, as recommended above will also help. Consider the Heavy duty springs, as you want less brake dive and sway at high speeds. They heavy duties will ride stiffer the mediums, however. The KJ will also get bump steer if you lift it: the angle of attack on the steering rods will increase, making bumps in the road go through your steering wheel. The more lift, the more bump steer. You will need to keep both hands on the wheel firmly.
You may want to replace the brake lines with steel ones and make sure the brakes are in the best shape. The stiffer lines will help keep mushy pedal at bay. The brakes will still stop well, but distance will increase. Maybe slotted rotors are needed for this usage? Usually they are a waste on a Jeep.
Obviously, a good street tire is going to be the only way to go for good high-speed performance. Revo AT's are pretty good all the way around, but don't have the best temperature rating for highspeed. I would not put any mud tire on it.