Before Picture
After Sandplasting & Primer
Removed Old Inner Fender with spot weld bits from Harbor Freight
Test Fit of New Inner Fender
Look no inner fender
New Inner Fender welded in.
I got this inner fender for my 1970 dodge Challenger from http://www.yearone.com. It was one of the cheaper ones without the black coating, so I sanded it and primed it with some dupli-color. It took me a little while to install it but it looks alot better than the one that was full of holes, especially around where the battery tray was. I used spot weld cutters from Harbor Freight. I tried a more expensive one but it didn’t last either. These don’t last real long, but they are cheap and all you need to do is take a little drill bit and drill a little hole first for the spot weld cutter to keep from ‘drifting’. http://www.harborfreight.com/3-8-eighth-inch-double-sided-rotary-spot-weld-cutter-95343.html The real test will be when I get the fenders bolted on and the hood placed and everything lines up ok.
Clemons' Big Blog 
Scott, great articles. I think this will be a big help to me since I will be doing many of the same repairs to my 70 challenger. I need to replace the trunk floor, front floor pan and some patch work to the inner front fenders. What’s the latest on your car?