Can someone confirm whether or not our 1st gen dually fenders are two different fenders or each the same one. - ie use a passenger side fender on driver side? I guess I haven't had them off to compare or looked at them real close. I took off my busted driverside fender today, the truck looks much better now!! Each one has its own part number fwiw. Driverside 3739776, pass side 3739772. Thanks, Bill.