The passenger side rear door! The line where the rear cap, top curved siding and flat sides come together is going to be a pain in the butt to make it look like something! I'm not exactly sure what I will do here! I may fiberglass the top adding on the the bottom of the rear cap to make the lines..........line up or I could cut a trim piece of aluminum to cover this..........the aluminum trim will come out to the 90 degree angle for sure! This door is two pieces, I'm going to change that to just one single piece it will look better! The dog is my UPS guys worse dream!