SD45 Question

[NW Modeling List]

I am working on the three different Phases(?) of the SD45.

Besides the 3 truck difference and the two different brake wheel location 

Early brake lever on short high hood 1700-1734. Brake wheel on the long hood
- 1735-1814.

What type of horn was used on the short hood?

Also where there any other differences besides the bay window between the
bodies that I missed?

Thanks, Stephen Rineair

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