Hank:
All I can say is the Skyjacker is at least twice as thick. The OEM one looks like a screen door closer. That being said, I can't say that I notice any difference while driving but I haven't been off road with it yet. It may be better there. I changed mine because at over 60,000 miles I replaced all the shocks with Rancho 9000's and thought I should also replace the stabilizer. Now as for the shocks? Yes, a whole world of difference. From what I understand, most guys change the stabilizer when they change shocks unless it's damaged or gets the "Death Wobble. "