Just a comment. Easiest alternator replacement ever. Remove belt with 1/2 drive breaker bar in tentioner. 3 10mm bolts hold the alternator to the engine. 1 10mm nut for the charging lead, 2 small wiring harnesses. If I had the new parts there when I started, it would have been a 30 minute job. 147k, original belt and alternator. Not bad, Ford.. not bad at all.