twisted minis
+1y
If you flip the upper arm over, you have to swap sides. What it does is angle the balljoint so it won't bind. If you have drop spindles you don't need to do this. If you dont, it will help lay on a bigger wheel, but you will loose lift because of the way the arm is shaped. It will hit the bracket at around 4 inches of lift. Its best to just pie cut your arm to the correct angle if it needs it.