Replacement alternator...

[sublimer]

I still have the factory alternator in my truck, but I think it's time that it goes...

I was curious, what is the amperage of the original alternator?

Are any of these any good as a replacement?

http://www.autozone.com/autozone/parts/ ... ra3yZ9ridy

[70_F100]

Factory would have been either 37 amp or 42 amp.

It should be stamped into the case (assuming it hasn't been replaced).

[CrypticRacer13]

I went with a 75amp autolight so i have room to add lights an what have you

[bill69f100]

I changed mine to a 1 wire 130A. I didn't have a problem with it. I needed it to use a 1000W inverter. Try to figure what you will use or add in the future.