OME (Old Man Emu) also makes a bolt in steering stabilizer that uses the existing mounts. We even have an article on installation here!

I bought a "Trail Boss" from the auto parts store (O'Rielly's). Bolted right up and it's heavy duty and works great (lifetime warranty as well).

I think Rancho has 2 different stabilizers. One is stock replacement and uses the stock mounts and the other is the U-bolt. I went with the stock replacement style Rugged Trail or some brand. If you have 31" or taller tires, a heavy duty stabilizer works wonders to smooth out the steering. Just be prepared for the old one to be frozen in place. I had to hack saw and drill out my old one because you can't hammer it out from the back since there isn't enough room back there to swing a hammer. I've only ever had one pop out easily and 4 others I had to cut and drill out.