Nope, other than re enforcing the arm of the K frame that the cotrol arm is on. There is a guy on Moparts that has been running his drag car that way for a long time, hangs the front real high most passes, no problems. When you consider that the rubber bushing cushions the loads put on the lowers, they should hold up fine. Ma Mopar never worried about it. If you think about it, had there been a need for a rear support, then there would be a problem with binding between the torsion bar and the socket. There isn't, and you don't see any marks from that on the hex.
