from this link:gotsmart wrote:
On June 30, 2011 I had the CampingWorld in Wilsonville, OR install a Roadmaster Front Anti-Sway Bar on my 2004 E450, part # 1139-115. It has a 1 3/8 inch diameter.
I had them install this CW rear tac bar. It is a SuperSteer SS450. Since I flat tow a car, it takes the tail wag out of the rear end.
I also had them install a Safe-T-Plus Steering Control # 31-140. More info here. It replaced a leaking OE steering damper.
All 3 parts were specifically recommended by CW Wilsonville's Performance Specialist. I am very pleased with the improvement in handling from all 3 of the upgrades.
I don't know why he chose the SuperSteer for the trac bar, but I have no complaints about its performance at all.