Open area underneath roof and quarter panel seam - Repair completed.

[72Charger-SE]

I removed the old quarter panel and now have the new AMD full quarter panel fully welded in place.  

The roof skin was trimmed back a bit so I could weld the quarter panel in place on the top.

The challenge I have is trying to figure out how to properly complete not only the roof to quarter panel seam but the open gap underneath the area where the roof was cut to allow the quarter panel to be welded.   See photos.  

Any assistance would be appreciated.

Thanks & GOD Bless,
Chad
 

[Nacho-RT74]

I think you incorrectly cut the roof skin... The correct job should have being just drill the weld spots and then in that way both panel lips will be overlaped, spot welded between them and filled. My car ( 74 ) was filled with lead on panels groove, not bondo, however I have seen them filled with bondo.

[72Charger-SE]

Yes, I agree..  I made a mistake in how I replaced the quarter panel.

My thinking was to use the entire full quarter from AMD and remove the amount necessary to utilize the whole quarter panel.  I thought keeping the entire quarter panel would make it the strongest.  Well.  Looking at it now that doesn't appear to be the right thought process.   

The roof skin is a metal of some type as I can use a magnet on it.  Can it be welded with a tig welder, perhaps?   

[Nacho-RT74]

of course the whole quarter panel is the way to make it, just that you cut the roofskin incorrectly. Both panels are spot welded between them and the spot welds are the ones what neeeded to be drilled out, but still keeping uncut the roofskin. Both panels gets lips to get that job made then filled with lead or bondo.

You simply need now to rebuilt the roof skin section to reach that area with a patch panel. But now needs to be home made...

or get a full used ( since they are not available ) full roof skin to replace that one... which is HARD to find and "HARD" to replace. Roof skin is FULL of spot welds all around

[Nacho-RT74]

sorry, this is a Camaro pic, but is the clearer pic I found on a quick search of how it was the roof skin with quarter panel area, how should have being removed and now how do you need to get that shape rebuilt back now to overlap both panels and fill the groove

[72Charger-SE]

Welded a 'platform' to build and form the short hair fiberglass filler...  lots of block sanding...

Several coats of metal glaze finishing glaze & lots of block sanding.   I will need to do final block sanding prior to paint but overall I am happy with the outcome.
 
Lesson learned... 

[Charger-Bodie]

For some reason I thought your car was painted. My memory.....

[72Charger-SE]

Well... the engine compartment, inside, door jambs & inside trunk were painted already.   I decided to replace the passenger side quarter with a new one from AMD.  So this is where we are at today.  At this rate it should be done by our 50th Class Reunion.