i am quite familiar with DC motors & brushes being an elevator mechanic. i should have asked more questions about the ford pump, mainly the pickup and what you've done/used. the bottom of the pump obviously won't fit the stock sock. FWIW, that pump looks very similar to the one I just changed in a friends '98 cherokee. I am doing a pump replacement in a TBI truck soon, so i will maybe spend some time exparinenting.