One plus of the '32s is that the entire front end from the firewall to the hood, front fenders, radiator shells and radiators are interchangeable. There was a service-only heavy duty four-cylinder radiator released fairly late in the model year primarily for big trucks.
'33-'34 commercial and big truck radiators are not readily modifiable for use on a a'32 chassis because of their rearward slope, which is absent on '32 radiators.