Hi Joe!
I too have a UP 8376 SD-40 with a failed 0105-001 electronic reverse board. I ordered an electronic e-unit from a vender on eBay, and I came to find does not work with a double wound field.
I'm wondering if you replaced the original board successfully. I'm also wondering if I can use my new electronic board by taping off ONE of the two field windings as Ted suggests.