My '78 has a rust hole beneath the battery tray. Are there replacement trays? How do you get it out to make the repairs beneath it? Is cutting out the bad piece and replacing the metal the best fix?

I have a '73 and I think that your cars battery area is vary similar to mine. I removed the tray with a spot weld cutter . However a drill will work to drill through partially , and remove the tray , cut away the offending rusted metal and have sheet metal welded back in. At the same time you can have any holes that went through from the tray removal filled. I bolted the tray back in after treating all the bare metal and painting with POR inside and out. This way I was able to keep por inbetween the tray and the inner fender. Or you can of course have the tray welded in place. Gary

Kinda what I thought Gary. Thanks. Seems most of these cars have this problem.