rear springs off my truck. 180 easy miles on them. Only driven to the grocery store on sundays . Well broken in, should flex really well on a full bodied truck or similar. Includes spring hangers I made out of 3.5" x .25" box steel, overloads with the fronts cut off to fight axlewrap, and a chevy (Tahoe I think) leaf I cut in half and was planning to use for 3/4 elliptical. $100