Are the tow mirrors the same for all years????? I had the dealer replace the passenger side under warranty but it doesnt look like the driver side........ Well it does mostly but I think there is a slight difference in the shape of the arm that holds the actual mirror........ Anybody know for sure????????

 

The left and right side arms are shaped different. The first one was the same but you just didn't notice it until it was replaced.
The right side does not stick out as far and angles more into the truck compared to the left (drivers) side.