I got my Fiero back today from the shop with the TH440 transmission in it. My speedometer is not working because I need a Fiero compatible governor assembly for the TH440. Going to try to find one locally; however, I'm reaching out to the Fiero community for help.
I received the governor assembly and put it quickly onto my transmission tonight. I was glad to see the part fit. I ordered the parts from http://www.txchange.com. I paid $40 for the parts and $14.72 for UPS shipping to South Carolina. Their part number for the governor assembly is RK84410.