Clack on deceleration 02 edge

[Bigsspike]

Hi guys, new here. I have a sharp clank when I am slowing to a stop. 5 speed Manual 02, 3.0 edge. Suggested control arm bushing. Upper and lower ball joints new. The suspension is torsion bars that I believe are cranked up pretty high. Bought it with torsion height already done. When I am slowing down, fairly slow to a stop and just before complete stop, clack. Sometimes one as I let off gas at like 25-30 mph, and then one when almost stopped. The control arm on the passenger side is the 2 piece and single on driver. I had guy replace all ball joints and then went straight to alignment shop. Alignment guy said and did install something that I can't remember what he called them, not a major part, but guy said I needed them. Since then (2 months ago) this clank is getting louder. I'm wondering if the truck is unsafe to drive. How do I fix this? Thanks ahead of time