I compared the exactly three for weeks before pulling the trigger. I was able to ride in new JLs with each of the lifts prior to purchasing, so this is just my view of each one.
EVO: This kit rode the best, however with bumpers / winch / rear tire it did squat more than the others. With 37's, he still had rubbing and wished he'd done taller springs. He also had King shocks on it, so that may have helped with the best ride as well.
Rock Krawler: Kit seemed to be just as well built as the others, but it rode the worst. Like a lot worse.
MetalCloak: Great ride and well built. This is the one I purchased for myself and installed - 3.5". A few points:
1. I really hope the joints hold up to expectations. Not having to rebuild Johnny Joints was a plus, so we will see how they age.
2. It's gold. Thought it would bug me more, but you really only see small parts of it and it's not as bad as in their pictures.
3. Ride is good, but I'm not happy with the shock setup. They are fine on the highway, but off-road I need something better.
4. There is a LOT of flex (may be the same with the other kits), but I still get some rubbing with 37" STT Pros on KMC 231 beadlocks in the rear at full articulation.
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