i found this stuf fmade by CRC its called corrosion shield,and they say it provides long term protection,i say its thin cosmoline in a spray can!! this stuff rocks,,ive been using it everywhere ive been fixing /welding on the rust monster,,i sprayed the inner rockers with it,,its sorta thin,give it 4 or 5 coats,let it dry in the meantime between coats,looks like whe yellow waxy crap that vw uses,,also maxima chain wax works about the same,il get a pic of the crc,and spray some out so you can see it,,its around 6 bucks a can,i highly recommend it!!!