Easy
Ryan, I have used this part many times. Funny what a bad CPS does to a starter (at least to my old '92). Anyways, it is a brush and holder assembly that you need, from NAPA, part number ECHF516, price ~$26. It is usually in stock here, as NAPA caters to shop owners and this is not an idiot replacement job part.
Most Ford electrial parts are standardized on the inside, with application-specific casing, so it is a common part. Use your AAA card to save 7% off that price; just ask them!
Other sources:
AutoZone lists Wells FX74, ~$23, special order.
Advance Auto lists Niehoff Ignition FF98A, ~$26, special order.
Make sure not to break the weak plastic starter solonoid housing taking off the leads. Clean, inspect, and **** busings/bearings and wear surfaces. Make sure the commutator (where the brushes ride) is clean, not overly worn, or otherwise bad. Although there is a proper way, I clean the commutator up with WD-40, clean the groves out with a pick or nail, and twist it with emry cloth and steel wool to virginize up the contact area. If you have the time and money, take the armature to an electrical motor shop and have the windings checked and the commutator turned.
If the armature is bad and non-usable, do not worry. Take a trip to the junkyard and pick up a Ford starter that
looks similar, off of nearly any FoMoCo vehicle. Take apart and pirate the armature from that, assuming the drive gear will work on the SHO flywheel and the overall length is the same. I used a '90's ****** armature and field coil section in my '92 SHO starter successfully because my original parts were junk.
Side lesson: If your CPS is failing, replace it. Otherwise, you will soon need to replace your starter. If your starter is failing as a result of constant cycling trying to get your SHO to start with a bad CPS, do not hit the casing with a hammer in order to get the brushes to move and make valuable contact to start. Otherwise, you will be replacing parts you broke in the coil section.
Some pictures done by WJ Dijkstra that may help (from a 1.4l Ford Fiesta, but nearly like our SHO application!):
Any questions, just ask!
Justin