Lost all electrical, then it came back. What's going on here?

Did u try the motor with linkage unhooked?
No, I didn't bench check the motor prior to installation as I assumed that it was good having just being rebuilt. I sent the motor back to the guy who confirmed the transmission fault, and he has now corrected it. He bench tested it at his business and is shipping it back to me. He said that I don't really need to bench test it prior to installing it again, and that it should start right up. I'll be sure to post my results when the motor gets back to me in a few days. And yes, the wiper linkages were not hooked up when it failed on me.