And shackles and pinion wedges to correct the pinion angle on the rear axle...

Rubicon express offers a real decent long arm kit that consits of a x member with a skid plate.Long arms attach to the skid. They offer there kits piece by piece also. I have installed there long are kits on a few customers/friends TJ's before. But the front suspension uses basically the same front arms. There kits are excellent!!