I did my leaf springs on my '98 with 110,000 miles and it was not a couple hour job. Besides I don't think that guy even owns and XJ so he doesn't know how bad getting the main bushing bolts out can be. First of all, start with the front bolts, those are the hardest. I think you need like a 23mm socket. i recommend using a 3/4" drive size socket and start to turn the bolt. Now if your Jeep is any like the other two I've done this on you won't be unbolting the front bolts from the bushing. What happens is the sleeve inside the bushing starts turning inside the rubber and the bolt never comes out. But what you want to do is un screw the bolt so all the threads are unscrewed. Then you need to get your hands on a power hac-saw and 12 of the strongest "metal" cutting type blades you can find. I got several at Lowes. Then cut the bolt to remove the remove the spring. Now if you have to go through all this your bushings will be junk and you will need to replace them. (They're not cheap) And have a machinist press them into the new springs for you. Because pressing the bushings is too tough for a bench press you need to use a hydraulic press to do this. Any who. After you have the front bolts and bushings figured out the rest can be fairly easy. You have to remove the upper mouting bolts on the shackles on the rear of the spring. The lower shackle bolt is facing the wrong direction and you won't be able to pull the bolt out with a hitch in the way if you have a hitch. Then of course you need to remove the 4 u-bolts and CHECK FOR WARE! Also check the mounting bolts and if your ambitious just replace the mounting bolts. Or at the very least take them to a wire wheel. Then make sure you grease the bolts when you put them back in. I am not sure about torque specs for installation. I just tightened them up tight and put a little lock-tight on the threads and that seemed to work alright. Also make sure you get good leaf-springs. I ordered mine through an online mopar dealer http://www.wholesalemopar.com/
. You'll need your VIN number to get springs from these guys. GOOD LUCK. And this whole thing took my about 15 hours probably. It's not as easy you might think. But it depends if you live in salty conditions and what not.