Since you said you had the doors in place when you did the quarters, I assume you had the gap right before you started welding. Which means your welding process pulled the panel. Otherwise, the time to address that 1/8" difference was before you welded the quarters on.
I haven't welded it yet. What do you do? Stretch the panel?:rolleyes: I'll just move the door back a bit or a 1/8" weld a rod down the back side of the door to close it up. Its around 0.330" gap right now
All I am saying is that you can spend $1000s on supposedly good sheet metal but you better have or develop serious body work skills or get deep pockets if you want to the car to look decent. I checked out lots of Darts at the local car shows and their panel fit and finish is decent and they were not big $$ cars.