Thanks all. I have already checked it out and there aren't any alternators that fit my car specifically. I might be able to construct something to make a bigger chevy one fit but the problem is that the early trackers, 1989-94 were also a suzuki sidekick, geo tracker and a few others.
Chevrolet didnt' really make the tracker at all they just sold the thing.
I emailed a bunch of the alternator companies online and there is one that can build me an alternator. 120 Amps for 200 bucks US. Other places cant' do anythign for me.
Thanks