Where the upper and lower quarter panel meet the under upper quarter panel seam is very rusty

[Wyattman2015]

What is the best way /tool /Chemical to get rid of the nasty rust on the upper quarter panel flange before I can attach the lower quarter panel.
Thanks
Robert

 

[yakelys69]

Wire wheel then metal prep maybe? Probably better to see what others say though.

 

[bax]

Flapper wheel. are you going glue it or weld it?

 

[Madgyver]

cut off wheel on your grinder or die grinder works for me. cut them out and replace with new fabricated pieces.

 

[rjrobin2002]

I scrap the old seam sealer out with a small chisel, wire wheel, sand blast, brush por 15 in there, then light sand the por 15, seam seal, and epoxy prime.

 

[Wyattman2015]

Flapper wheel. are you going glue it or weld it?

Going to glue it!

 

[bax]

Done yet?