Oxen__

i have an 1989 Xj sport with power locks and windows. i am curious. if i have these options did jeep install the 100 amp alt to my xj? i went to go get it replaced and i dunno if i have the 60 or the 100amp.

from what i searched my alt ranged from 60-100 amp i'm plumb confused at this point.

freegdr

if your replacing the alt just get the 100 amp better of in the long run

The Rooster

I would also get the 100 amp way better for you in the long run...

Grandpaswagon

Get the bigger alt. No harm will come to your electrical system. You will just pay a few more bucks to get it, and have a lot more amperage available to use when needed.

Gorillaxj

X2, just get the better one. Or if you want to swap in a ZJ alternator 136A here is a writeup. https://www.cherokeeforum.com/f51/zj...nix-xj-109847/

Oxen__

ok here is the main reason i asked. Knowing i can install a zj alt.

if i have the 60 amp i want to go ahead and upgrade to the 100amp . why is because i am pulling more amps now with lights , also i am going ot be adding other equip as well that will be needing power too. my alt is acting taxed as it is. "i should have mentioned this". so if i already have a 100amp and its acting taxed i will go ahead with the zj alt. if i am running the 60amp well 40more should do me up. to charge a second bat and run a wench. wench on isolated batt.

Oxen__

BTW this write up is a tone better than the one i found. thank you. i may just go ahead and do this.



do you know what jeep ma have a smaller dia Main pulley to get my belt speed @ idle up? i will also be using the smaller Alt pulley too. I'd like to get as much over drive on the alt as i can. Too a extent. i rarely wind up over 4000 rpm even on the street.