Quick question on the cam phasers for the 5.4 Triton. I know they are both marked L and R, but is there a difference in the main spring or clutch on them? The reason I ask is that I just pulled the passenger side cam phaser to replace it and the OEM was marked L. The one I ordered was marked R and now the truck is not timing correctly. I didn't want to have to pull the whole front end apart again, but I am going to have to in order to get the timing right. Just curious if anyone knew the difference.