I'm new to this class so I'm not trying to cause trouble, I just thought this was an accepted change on these cars.

Jake, I don't think the answer is black and white. The upper arms also hold the axle in place. Either the upper or lower bars missing would result in uncontrolled axle rotation, something a traction bar prevents. You need both the upper and lower arms to control axle rotation, doesn't that make them both traction bars?

But like a leaf spring which serves two functions, these rods also serve two functions. Fore-aft control as well as rotation. Without this interpretation, third link components that "replace" the upper links would be illegal, wouldn't they? Aren't a bunch of people running the G-Force and ISC third links in ITA?

-chuck-