Bear with me for a second bc i think the back story will help with the solution.
I bought my 02 Tacoma used. It appeared to have at least a 3" lift. I noticed the truck sat low in the back end so I added a leaf. Also it had nice yellow Billstein shocks which were replaced with crap shocks. The leaf and the shocks were installed at the same time. After this was done I noticed a terrible sound coming from under the front end when the truck went over a speed bump or dropped off of a ledge <3". It specifically happens when I go over a larger speed bump and as I come down off the speed bump the shocks decompress and makes a very ruff sound. If you know what this is and how to remedy it I would be very grateful. Thank you