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Old Jul 14, 2010 | 07:10 PM
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Default Alternator upgrade

I want to upgrade my alternator. Is it a direct swap for the truck alternator and does anyone have the part #
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Old Jul 15, 2010 | 03:55 AM
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https://ls1tech.com/forums/generatio...-failures.html
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Old Jul 15, 2010 | 05:28 PM
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Type kg3 alternator in ebay. Thats what I did. kg3 is the option for the 145 amp alternator instead of the 105 amp they come from many different gm trucks and suv's

oh btw I got mine for 48 shipped with 29k miles on it

Last edited by crazyelf; Jul 15, 2010 at 05:29 PM. Reason: added more info
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Old Jul 15, 2010 | 05:46 PM
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got mine at a local yard......40$........but will be gettin a 200 amp monster soon
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Old Jul 15, 2010 | 05:48 PM
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haha 200 amp wow......... why would that be needed?
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Old Jul 15, 2010 | 08:47 PM
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Will the KG3 alternator work with the 98 corvette accessory drive system?
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Old Jul 15, 2010 | 10:05 PM
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i dont think its the drive.....its the mounting location holes in the housing........i have seen AD244s with different housings.......but you can still buy built up 244s.......or even do it yourself
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Old Jul 15, 2010 | 10:05 PM
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Originally Posted by crazyelf
haha 200 amp wow......... why would that be needed?
got a high watt stereo?
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Old Jul 16, 2010 | 12:07 AM
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Originally Posted by sjsingle1
got a high watt stereo?
ah I see, my stereo knowledge doesnt go past basic systems
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Old Jul 16, 2010 | 06:30 PM
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Originally Posted by sjsingle1
i dont think its the drive.....its the mounting location holes in the housing........i have seen AD244s with different housings.......but you can still buy built up 244s.......or even do it yourself
Thanks for the reply. I will for an upgraded unit.
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Old Jun 30, 2012 | 12:27 AM
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I am going to order a 145 amp alternator to replace the shitty oriellys one I have one there. Is there anything else I need to do?
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Old Jun 30, 2012 | 06:18 AM
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Originally Posted by Chaos07
Is there anything else I need to do?
Most peeps will do the big three wiring upgrade which is larger cabling:
Alternator to battery positive;
Engine to chassis ground;
Battery - to chassis ground.

Most people don't do the wiring upgrade. Even though you're going from a 100 amp to a 145 amp alternator, it's doubtful it'll reach 145 amps output as the car will only draw what it needs-unless you've added some sort of heavy electrical load such as a big stereo system. The main reason to do the alternator upgrade is because the larger unit has more output at lower RPM's.
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