I'm actually in the process of doing this right now. I bought a set of Teraflex 44's from a YJ w/ ARB's, 5.13's, Superior shafts and the Teraflex High Steer kit and plan on putting into my TJ. These are an older version when Teraflex used to build a lot of custom stuff (from what I'm told), and have 2.75" axle tubes.
As mentioned above, most of the kits are made for 3 -3.25" tubes, but Rubicon Express does have front and rear kits that are made for 2.75" tubes. They run ~ $400 per axle, and I'm not overly excited about the front axle truss as it looks like it partially bolts to the diff cover mounting holes. Another option for kits is Teraflex, but you are looking at ~ $600 front and $500 rear. This is just for the kits, my local builder is quoting ~ $1000 to remove brackets from the 44's, weld on the new bracket kits, remove the existing 30/35 and install the 44's.
The Jeep currently has a 4" Teraflex short arm kit, but I am thinking hard about just biting the bullet and doing a fully linked suspension (3 link front, single triangulated 4 link rear) with the existing coil springs. I would use Poly Performance kits for the most part, which is going to run ~ $2K per axle installed.
Last edited by giles45shop; 07-30-2013 at 08:26 AM.