Yeah one was one way the other was revered for some strange reason. Finally got them off with the help of an extended ratchet. Geez. Haha. All good now.The left hand side will always be regular threads. But the right side might be reversed, since you want the mirror to loosen up if you hit the ground. In addition to that, they're probably 'loctited', so need to make sure which way the threads are, to avoid damaging anything. Good luck.