21st series bodies... weaknesses?

Posted by R Anderson On 2013/12/7 17:54:11

Were there any specific areas tending to severe corrosion weakness on the 21st series bodies, other than the usual suspects in older and not very well rustproofed cars? What areas should be examined particularly closely for lack of integrity and/or are known to be a problem area on these cars?
My own experience is exclusive to '55 & '56s. Thanks for any advice.