Questions about Springs, Shocks & Panhard

[Mr Handy]

I went with a 2.5/4 drop. I got everything from ECE.
They have a complete 4/6 kit with everything you need to do the job right except maybe new ball joints. Also they have service to back up the products.
When I dropped my truck, my front end dropped lower than expected and they swapped out the front springs at no cost to me. They said about once a year they have a truck that the front end wants to sit lower then it should, I guess mine was that truck... nice to know if you have a problem you can call and get real help.