1930 Generator Pulley Diameter and Style

[dneivandt]

I need to have a generator rebuilt for my DD-6 which is a Delco Remy 943 R.  I have found literature stating that this is the correct generator for a DD-6 built in 1931 as mine is, however I need to determine what pully diameter and style it should have.  I have a 943 J with a three spoke pulley of 3.30" diameter, and other solid pulleys of 3.65" diameter. The master parts book says the same pully was used on the DC, DE, DH, DI, and DL.  Does anyone have an original generator on one of these vehicles who can measure the pully diameter, or alternatively literature stating what the diameter and style should be?

many thanks in advance,
David