well, doing a search on the 2 different engines/cars <i used 89 and 92 years...>
the 92 had 3 kinds of alternators: 2x 80A lifetime #14987 beck arnley #186-0509 & 1x 90A #186-0721
the 89 had 2 kinds: 80A lifetime #14883 & beck arnley 80A #186-0509
hmm, i recalled some models had mitsubishi alternators, while others <i've never seen it> have hitachi alternators...
waitamin, u got both in front of you; Y not just check & confirm???better yet, bring both in to be "bench tested" for free:ylsuper
Edit: sorry, i was looking @ some other list member's signature...
parts were looked up @
http://www.autozone.com