My alternator went bad on my mustang and it has the Roush Billet alternator bracket I went to Orielly's with the bad alternator and they cross refrenced it and sold me a reman alternator. I put it on and it fit perfect but didn't work(only put out 11.49v at the output post). I took it back and the exchanged it for another reman, I intalled that one and it had the same issue. I decided to order a brand new one form summit so I returned the second bad one to Oreilly's but they had already sent my core off. So I get the gm one wire alternator that I was assured would work by roush. And it didn't fit, the lower tab was off by half a inch. I called roush again and they told me to order a power master and it would work. After doing more research I found a power master part number which is 8002 rr but they don't sell it anymore :-( I need a 140 amp that works with it. Any help would be appreciated