1/4 panels help!

[bobbycos]

Welded. They have to be cut off, and new panels have to be welded on.

This is a procedure best left to a professional

[Fleetw00d]

mostly every where well just be the wheel arch, especially if its for a sedan. iv'e never personally looked for a full panel for a sedan. i have seen them for coupes though. it sucks because the wheel arch one's don't cover underneath the door pillar and that's where iv'e seen a'lot of people's cars rust the most and i'm currently one of those people .

Quarters from a coupe shell could be cut fairly far forwared to include the area you describe similar to where I cut for the quarters for Ruby. There was a rust free coupe a few months ago here in Cincinnati, but no one expressed interest so I didn't go back and cut them out (a lot of time and money if there isn't interested buyer).

Aren't the rear fenders integrated to the body? If not, how do they come off?

Deev and bobby are correct (of course they are). The thread referenced in my previous post on this topic will show you how it can be done if you're willing to put in the time and effort.