Time to prep the wheel pants. I sanded the seams flush with a disc sander and then used SuperFil as a filler. It's a very lightweight 2-part filler. It's ready to sand in 12 hours. After sanding the filler, I primed the pants with sandable primer. When dry I wet sanded with 1200 grit paper. There are a few pinholes and low spots. Will need one more coat of SuperFil in spots.