I just did this with my 79 CJ-7. It had the factory low amp alternator and I upgraded to a 100 amp from a 198?? Chevy ElCamino with A/C. The way I got mine was by taking it into the parts store (AutoZone) and matched the case size and clocking of the case with another alternator that put out 100 amps. I can't remember what exact year it fit but it cost $70.00.
Hope this helps. If you have trouble finding the right one I will see if mine has the numbers still on it and let you know.
Peanut
Hope this helps. If you have trouble finding the right one I will see if mine has the numbers still on it and let you know.
Peanut