I noticed on my rear quarter panel, its gotten noticeably worse.. i see where its beginning to bubble under the paint. What should i do? I do not have alot of money to spend.. Help me out.

 

Being just East of Pittsburgh-I know what your concerns are. There is no such thing a s "pre-rust". It's either on the surface only and needs to be scuffed off and painted or it is already in the metal. The second one is where you should be planning some serious effort to prevent it from spreading. Lots of material on how to take care of it here and iin the library and bookstores (free reading you know <G&gt.