Bump stop questions.

[rs74]

I will be installing a 4/6 drop on my short bed soon and have some questions about the bumpstops. I assume that I need to take the rear stops out and cut the brackets off the frame, right? Second is the front bump stops. There is a stop with bracket on the top of lower control arm, this one comes out to right, stop and bracket. There is also just a rubber stop that is on the bottom side of the upper control arm. I want to go ahead and tear down the truck and have it ready for when the parts arrive.