I had lots of space in the rear. By lots I mean like 2-3 inches of space. My front ones were basically riding on them. I only noticed it when going over rail road tracks. Roads here in fl aren't too bad, no rock salt or plows to wreck things.
I'm sad to hear it didn't work out for you.
Which shocks did you use?
I have not measured the actual distance from the bumpstop (rear axle) to the bump stop plate. After DavidRam mentioned they ride super close I took a look and saw it was VERY close. Mind you, the springs are brand new and have not settled yet so they will drop even closer.
I have only hit the fronts one time so far and it was not too bad.
Shocks: Front- Stock
Rear- Belltech Street Performance Shock
On a smooth road the truck feels good. It corners very well (I also put a hellwig sway bar on so it is hard to say how much of the cornering improvement is from the actual lowering kit and how much from the sway bar). Though for me as a DD I just can't run these. I live in Houston and the roads are not too great. I mean, yes I drive on areas that are pretty good but I also live in the Galleria (and the roads are kind of ******. Not necessarily pot holes but just drops and dips at expansion joints) I am literally hitting the rear bump stops every time I drive.
At this point I am for sure getting the crown springs based on what I have read. The things I am uncertain of are if I will run a 2/3 drop or a 2/2 drop. I think with the stiffer crown spring in the rear and the increase in 1" suspension travel, it will help keep me off the bump stops much better than the Belltech.
I understand from peoples post that I can cut the rear bump stops but at this point I don't want to put a band-aid (IMO) on the problem (problem being you have a 4" drop and springs that are the same spring rate as stock)
I did benefit by getting the Belltech kit because I got the shorter rear sway bar end-links, panhard relocation bracket and the shorter bump stops (front and rear). I will keep everyone posted. I am going to make a post asking if someone with Crown springs 2/3 can show a picture of their vehicle from the side. So I have a better idea.