Can someone confirm for me if the rear wheel chrome from a 70 cutlass convertible is the same as from a hardtop 1970 cutlass

 

I'm not sure what the differences are, but in appears there are three different part numbers in the MPC for the rear wheelwell moulding package for '70 models:

8702869/8702870 - Cutlass & 442 2dr, 4dr, conv.
8702871/8702872 - Cutlass Supreme 2dr., 4dr, conv.
8702501/8702502 - wagons

 

The Supreme/SX pieces are shorter and connect to the wide diecast side trim those cars have. The Cutlass/S/442 pieces extend all the way to the rocker panel area.