I have a1970 Cutlass Supreme and I am needing to replace rear outer wheel wells. Looking at them everyone has them listed as Cutlass Convertible and non Convertible. So the question is are the non convertible the same between an S and a Supreme?

 

According to the parts book, yes. All 1970-72 Cutlii except convertibles and wagons use the same outer wheelhouse panel. P/Ns are 8735440 RH/8735441 LH for all except convertible or wagons.