If you have typical E body rust below the corners of your windshield then this set will usually solve the problem. If you also have rust higher up in the windshield trough along the sides of the glass then do not use this part and instead use AM375-1570-L, A pillar/post and AM379-1570-1L, windshield/cowl corner bracket.
Our SKU # for this part is CLAM379-1570-L
We regularly add more muscle car restoration parts to our website. We probably have the parts you are looking for, but they may not be posted here yet - contact us and tell us what you need.