Well I got the LH fender skirt on. My far it was the hardest to get on the bed. The holes were so far off I had to shrink the one flange to get the one hole close enough that I could drill a new hole. Then like the LH I had to beat the one flange with a hammer to close up the gap between the fender and fender skirt.
Had to go a bit primitive to get the RH fender vertical and square to the bed. I did measure the diagonal's and were different. The only place you can adjust for the difference is at the front panel. The rear is locked in because the rear bed sill fits into the stake hole channel.
I did get distracted and put my new rims on the truck. I got them this weekend and wanted see how they looked on the truck.