I've had the Skyjacker dual steering stabilizer on for about a month. I just put the DSS (?) steering bracket from Darin & Piers on day before yesterday. Together, both have made a big difference in handling, especially at highway speeds, loaded and unloaded. Very precise and predictable now, and no surprises on bumps and potholes. Bump steer and unstable tracking are gone. Mountain S-curves are no longer exciting. Life behind the wheel has become boring again.

Difference was immediately noticeable with both upgrades, even though the truck has 8700 miles. Thought I'd throw this out there.

 

The Skyjacker dual system performs much better than the Rancho, IMO, I've driven identical vehicles with both. The Skyjacker stabilizers are enormous and very smooth. I did not need an alignment.

However, the Skyjacker system is a bit, well, frustrating to install. Yes, you can put it on relatively easily with common tools. No, you cannot follow the instructions exactly and expect to get it right in an '02 4x4. The axle U-bolts are a shade too small at 3 inches, you'll have to bend them out and then in again, or get new 3 1/8 inch bolts. The tie rod bolts on the driver's side set up very well, if you reverse the larger for the smaller, instead of following the instructions. The tie rod bolts on the passenger side will not clear the spring stand at extreme turns. You can do one of two things, and either works great. You can buy your own hardware and mix and match to get the passenger side tie rod connections to work, OR, (the easier solution) You can rotate the U-bolt plate 90 degrees so the bottom faces flat forward, and use the original U-bolts to hook it to the drag link an inch above where it connects to the tie rod.

I know the second option sounds chancy, but it's not. It lines both stabilizers up perfectly, and there are no clearance problems at all, even with extreme articulation off-road. I don't think it matters that one "end" is on the tie rod and the other "end" is on the drag link, as long as you install the drag link end as close as possible to the tie rod link-up. If I'm wrong, someone tell me before I break something, but I've got 2000 miles on it, a lot of that off-road, and no problems at all.

This issue may be aggravated somewhat by suspension lifts. Mine is 3 inches.

Based on my experience, you can expect sure tracking through bumps and potholes, no jumping around. You can expect similar steering on all road surfaces. You can expect better handling through curves, less chance of sudden under or oversteer.