Which alternator should i choose? Which one is OEM?

http://www.rockauto.com/en/catalog/pont ... rator,2412

I can't choose :D

Out of what you linked, I would lean toward the new AC Delco if you don't have the heated windshield or the new pure energy for if you do. For beater cars (not saying yours necessarily is), I usually just go for the $20 junkyard options for starters and alternators. If you plan to keep the car, I would consider one local that has a lifetime warranty. I like RA, but for starters, alternators, and calipers, I usually just buy locally. I don't like shipping back and forth for cores and warranties.

_________________

92 Olds 98. L67, Gen 3 M62, 2.55 pulley, FWI, PLIM, 1.8 YTs.

Thx

Pure Energy is a good manufacturer? First time I see it