1hotdawg
+1y
Drive the truck up onto some ramps and get your head in there and see what's stopping it from dropping. If you've got drop spindles on there that BS bracket should not keep you from going lower...spindles won't move the control arm.
Or you could jack up the truck, put jack stands under it, and then jack up the suspension with the jack. Again, looking for what's interfering with it lowering like it should.
Jack her up and snap a picture of your set up and post it on here and we can probably help you quite quickly.
I thought my bumpstop bracket was in the way of my drop as well, but my problem was that the Toxic shocks I had were only made for like a 2" drop, so they were bottoming out. I now have the Summit Sport Truck labeled Doesche Tech shocks that are 7.5" compressed
Seriously, don't go cuttin until you know what the problem is for sure.