Cold case 756a fitment

Got a response from sales@coldcase. They said I’ll have to modify it…Okay then, that’s that. Mine is a ‘69 fish that was a 318 a/c car hence that OE part # rad. Dunno if that makes a difference? Last note is that if I look at pics of OER brand repo or alum radiators for 67-69 direct fit the brackets look like my O.E. does.