Originally Posted by MGOBlue
Did you try the "free" mod on the rear track bar first? I just wanted to see if the blue ox was a significant improvement over that.
Free mod was on the Sway bar. Trac bar is a completely different animal. The free mod stiffens the sway bar which helps with the "tilting" back and forth of the coach. The Trac bar locks the drive train to the frame which helps with the back and forth motion of the rear end, "tail wagging", which causes the driver to make steering corrections.