Hey Jerry, looks like you and I are working twards' the same end. I've been experimenating with coils since I started building this thing. I've finally got the front close to where I want it (Calmini 3" coils with 1" spacer.) In the back it's a different story. OME coils with 2" spacer and modified mounts in the rear. The problem now is the rear is MUCH harsher over sharp edged bumps than the front. The height is fine, but the OME spring rate is slightly higher than stock, and with all the extra weight on the front of the rig: winch, winch bumper, skid plates, etc, and a lighter than stock rear, gutted in back, no rear seat, and empty most of the time, the ride is uneven and tends to "hop" over sharp edged bumps. I suppose I could throw a few hundred pounds of extra weight back there, and on trips I do. When loaded it rides much better. But I want to have it both ways. Need adjustable set up. At this point the only way I can get the coils I want is to have them made, Stock rate, or LIGHTER, 140 to 150bs, 3.5" longer. I've already priced them $350!!! That's a lot of money to spend. I've been doing a lot of research on this and found I can get a good set of COIL OVER ADJUSTABLE shocks for a bunch less than that, with the correct travel and spring length. Just have to figure out how to mount them. I'm working on it. If anyone else knows where there is some kind of spring rate chart that gives sizes and actual numbers, that would be EXCELLENT!!!