hmmmm... let me see if I can hit all of the points in this thread. Thanks for referring to us for feedback Torspd.
It really all depends on what you trying to get out of your X.
For us, you get some drop, and added handling along with it.
With DJM, you get more drop and still kinda maintain stock ride quality.
I say kinda because with 3 or 4" blocks you get axle wrap on take off and when you're hauling stuff. The more block that you add, the farther away your axle is from the leaf springs. With basic physic (torque = lbs forced x length of lever arm) Torque/axle wrap increases as you add blocks (lever arm). as your torque increases at this point of the spring, it allows less effort to flex the front half of your spring. The issue with this is that the force has to come back. It does this quickly and basically tries to throw the back end of the truck up. Don't worry.. it's not getting tossed in the air or anything. But, when this happens, the weight (not much to start with) goes away and you loss traction and get wheel hop. Then you feel like a goof as everybody is watching you leave the parking lot going brrr brrr brr br b. :argh:
Of course, if you go with our "stage 1" the Street Drop kit, that issue is still there, it just increases the taller the block is.
As far as your wheel gap. It will decrease, not increase like the shop mentioned. If you do not drop it, your axle and spindle are still in the same place. So as you increase the diameter of your wheel (and tire) you will deplete the wheel gap. The down side to this is that you WILL end up "lifting" the X as you increase the total tire diameter.
With rubbing (while running the Concept One RS-20), you will be fine with our kits (all of them, since the drop is about the same...just the performance increases dependent on the kit). If you do like Tommy and do 3" blocks... but don't notch, you won't rub. But, you will bottom out a lot unless you compensate enough with QA1s. If you do either of DJM kits, you will rub with 20s and enough tire to not be a bad "rubber band tire" kind of ride. I've seen quite a few people only have to trim a little to make everything clear. I've also seen people do nothing but drive Ms Daisy and manage to not rub or scrape without trimming. Of, course I've seen people say they didn't trim anything with no troubles. Then I look at their tires and they're all cut up from the bolt heads in the fender. :hmmmm2:
In case this isn't confusing enough, you can mix match XII and DJM to do some crazy stuff too. You can go WAYYY low. Or you can DJM, then get better handling spring from us. We have stock height coils with the same rate as our drop coils. We even started doing different drop steel springs for the rear outside of our normal 2 inch drop. Depending on how you go with that, depends on the shocks needed for the back though.
Ohhh... and did I mention that we are getting close to releasing fully adjustable front coilovers too? :crinklehair:
