Ok, here's the deal. Here is the part number 78-4352. It is by A1-cardone, all local parts stores should stock from this manufacturer. I called O'Rieleys and they won't do a mail order or out of state order. He said you should bring the part number up to a different store and try it there. This part number is for an 89 5.0 5 speed. You need to explain to them that the computers are interchangable and that just because you don't have the exact last four digits doesn't mean it work work or it isn't the same. If none of that works you could send the bad ECM along with a check made out to O'Rieleys and I would do it for you and mail it to you, but why trust a United States Marine with a check not even made out to him that you've never met before and never will but trust him to put his life on the line to protect the freedon of this great Country in a moments notice? Your decision!
LOL, really if you need me to help out, I will. Good Luck
