Whats everybody using these days? The oem lasted me 2 years after my built motor was done back in 2007. I then got the PA Performance 130 Amp Alternator from lethal, it lasted 4 years. I then got an autozone one and it lasted 2 years and my last one was a rebuilt oem. its about 3 years old. She started running bad last night, shaking at idle, put max load on it and volts were at 11.43 time for a new one. I checked and n warranty's them because they all know there going to brake, I guess. The total miles are 21k, that's a bad alternator every 5k about!! Any better options out there that will last? And yes I am running the 4 pound lower with the different alternator pulley to not make it spin to fast.