never done it... but i've read good things and would love to do it on mine. you can either buy aftermarket products specifically for your vehicle, or pull components off another vehicle and use them on yours (GC to cherokee for example).
Yeah that makes sense. The Exploder has a rear end that matches up to an XJ pretty nice. Alot of people have done complete swaps with the hardest thing to do is relocating shock mounts.