I used
this set this weekend to drop mine 2" in the back. At low speeds, I can hear a noise when hitting a bump though. I'm wondering if I should have trimmed the bump stops. I put new KYB Gas-a-Just shocks all the way around as well. I torqued everything to specs, so there shouldn't be anything loose. I don't know if I should have used 2" drop shocks or not.
One of my mechanics at work told me to put some grease on the bottom of the bump stops and drive around. When I got back home, he said to see if there was grease on the frame. If so, he told me that the bump stops would need to be trimmed. I guess Ill try that first and go from there.