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I am in the market in looking for a new alternator anyone have any ideas on what to look up i am looking to get one at kragen pep boys etc and they always ask what vehicle is it it off of what should i have them look under.
 

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Just bring the old one and match it up. It probably matches up to a Chevy suburban or something....or just take yours to a rebuilder.

You will probably have to switch pulleys, but every parts store (that is worth a schit) that I have been to has an impact wrench and sockets to change pulleys.
 

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CREWCAB and I brought in the alternator of a 4b into the NAPA store/warehouse/distribution center for our area.

It doesnt exsist on paper per them. Gotta love counter jockeys
 

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I think mine is a plain old 12SI from a GM
 

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mine looks like a variation of the 12si. it is single wire and i think the mounting is a bit different...
 
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