I have a set of 43" z bros arms off of my IQR, they were used 2 seasons, the lower left was replaced with a new one this last season, it is the new version from the year before so it has the tab for sway bar on it. so one side has it and the other does not. does not affect the way my iqr handled, I will sell for $400 shipped to the us with the bulkhead bolt bushings and bearing in the lower arms. They are wrinkle black