The original bucket seats fit very well into the jeep without any modifications. If you want something a little more sporty looking or supportive, I see a lot of people swap in seats from a CJ5 or CJ7. This will require more mods to fit correctly. In many cases the wheel wells are notched out to allow the seats to scoot further back to provide more leg/belly room.
With old jeeps, all you have to do is look around for ideas and you are guarenteed to find a "Bubba" mod for just about anything....
