My Duster Adventures
Looks like you got it to fit great. Weld up that cut in your frame gusset before putting the floor pan down. Use some weld thru primer on all the overlaps too. I mark and pre drill and deburr 1/4" holes on the new pan where the spotwelds are supposed to go in the frame. Easiest way is to trace the outline of the frame onto the pan from underneath the car. You can see how my son and I did this with the trunk pan in the last pic
Then I use self tapping screws in some of the holes drawing the new floor down tight with the frame to pin it together. After you rosette weld up the 1/4" holes not pinned with screws, remove the screws and fill up those 1/4" holes too. Heres some pix where I pre drilled and deburred the rosette weld holes and temporary pinning everything with sheetmetal screws.
Looks like you got it to fit great. Weld up that cut in your frame gusset before putting the floor pan down. Use some weld thru primer on all the overlaps too. I mark and pre drill and deburr 1/4" holes on the new pan where the spotwelds are supposed to go in the frame. Easiest way is to trace the outline of the frame onto the pan from underneath the car. You can see how my son and I did this with the trunk pan in the last pic
Then I use self tapping screws in some of the holes drawing the new floor down tight with the frame to pin it together. After you rosette weld up the 1/4" holes not pinned with screws, remove the screws and fill up those 1/4" holes too. Heres some pix where I pre drilled and deburred the rosette weld holes and temporary pinning everything with sheetmetal screws.