Gillig 5, I found the numbers to match your Prestolite starter on your 1978 477 Super Duty. ML4358 is still Prestolite's number for that particular starter; Ford's number is D8QF-11002-A for a new unit and D8QF-11002-AX for a rebuilt unit; NAPA Rayloc has it as part number 44-4302. The price I got from NAPA was $254.80 w/exchange; a fellow from the closest Ford dealership was supposed to call me with the price but he did not--at least today. I hope this is of some help to you.