2018 Tahoe 370a alt & xs battery upgrade

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Chevy*808*

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Has anybody upgrade there alternator and battery on thrrr 2015-up Tahoe / Yukon ? I’m about to do mine this weekend any advice or anything Heads up I need to know Lmk guys
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salisburyv

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Has anybody upgrade there alternator and battery on thrrr 2015-up Tahoe / Yukon ? I’m about to do mine this weekend any advice or anything Heads up I need to know Lmk guys
View attachment 358294
i'm subbed. i'm going to be doing the same thing. i bought an e bay alternator with a 2 year warranty. fits stock location. i plan on adding a Deep cycle die hard gold in the 2nd battery spot under the hood. I'll have the standard die hard gold for vehicle power. I'll also have a 3rd battery in the rear tied in to the sub amp. So much room to work with. Time to start sound deadening!!
 

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