Yes two solenoids on these fords with PMGR starters. The one on the starter is "wired" with permanent jumpers where we're used to seeing wiring. So, when that fender mounted solenoid sends current down the cable, it will crank without further input.
My neighbor recently had a starter failure, and it took replacing both starter (with onboard solenoid) and the fender mounted solenoid as well.
I think the damage arose from a friend of the neighbor trying to start it on a very low chassis battery. If the starter's dogging on a low battery, do something about the battery before continuing.
