You've gotta compare apples to apples here. We're talking about doing this from ground zero, not after you've already done a 4" lift and have half of the parts already. Also, a YJ requires a bit more than a CJ. Those guys will be sagging and negative arching stock springs within a year without some sort of anti-wrap device...get on a nasty obstacle and it could cost them some broken parts as well. I haven't had mine on the road yet, but I've watched a couple of my buddies go through the trials & tribulations of spring wrap & wheel hop and learned. One was running a stock 4.0 (he's completeing a Magnum 5.9 swap right now) and the other is running a stock 302 from a truck (he's broken the most stuff and he's not heavy-footed).