I talked to Rancho today, I spet about 15 minutes trying to reach a live person and I finally did. The following is what the tech/ customer support guy told me.
The 9000xxx will be available the beginning of April. The design is similar to s the Bilstein Pre Load Adjustable shock, the perch is NOT welded in place. Also, these shocks claim they are adjustable once installed, but according to tech support they can only be adjusted before installation. Every time you want to adjust them you need to remove them. Basically, I think this is Ranchos answer to the Bilstein pre load adjustable shocks. The 9000xxx should retail for $99 a piece.
Rancho also has another product coming out in April called Quick Lift. These are going to use the stock coil spring but the spring perches ARE welded to the shock. These will come in different ride heights for different vehicles. These are supposed to retail for about $200 a piece!
GoRancho.com
I also called Bilstein coporate office today and talked to Shane in the Off Road Dept. According to him the pre load adjustable shocks will lift a DC 2wd up to 2.5" While the Bilstein coilovers will lift a DC a max of 1.25". I think for the money you can't beat the Bilstein pre load adjustable, I am purchasing a pair next week. Granted I will be doing zero off roading with these.
Hope this helps clear up some questions.