30 windshield-2dr/4dr

[Colonel]

Are the 1930 2dr and 4dr windshields the same size and interchangeable?

 

[Bob Bidonde]

The glass in 1930 & 1931 closed cars is the same except for the slant-windshield cars.

 

[Oldbluoval]

The windshield frames are interchangeable…for the most part.
There are several differences in the air deflector.
As stated by Bob, the slants are different