[gwhite]

The '32 commercial grille is a virtual bolt-on to a 30-31 radiator. Only modification needed is to fab/re-drill the lower shell-to-radiator bracket.

The '32 passenger grille doesn't fit as well because the lip for the insert is too deep. This causes alignment issues with the radiator neck.

In either case, you'll need to modify the headlight bar to fit, as it will hit the grille bars.