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Message: <blockquote data-quote="ORVietVet" data-source="post: 29514" data-attributes="member: 9438">So, recently I had my battery go dead with no warning at all. It was exactly 5 years old Interstate 78 series AGM battery and I replaced, via a service call from a guy named Kanyon and big enough to earn it, it is an Interstate 5 year non AGM battery. The alternator that is on the Tahoe is also 5 years old and was a new GM 15128978. Cannot get a new GM battery at RA any more. I did some research and a guy at Automotive Parts Specialists wholesale warehouse in town, named James, did me a solid and researched and found a new GM alternator number 19338659, 160 amp and does show in the application guide at Summit but strangely enough not at RA. I can get it at RA but it was not in the NEW application at RA. I had a $116 credit and paid $85 difference, including shipping. Installed today and is solidly working great. The old one was still working but had very slight front bearing noise and could hear it with my mechanic's stethoscope and also, faintly on the bench. I am preparing to install a new second battery and will wire in with disconnects, as per a recommendation by @Joseph Garcia, and wanted a new alternator for the whole process and with the pending credit, I pulled the trigger. Will sell the old one here locally. here is some pics of the install and I did a throttle body cleaning while in there.I am sure most know of this but in the 6th pic you can see the little ears the attaching bolts slide thru to mount the alternator. When remove the bolts, grab the top back of alternator and pull hard to tilt forward and that will put pressure on those ears to move forward and help create space to lift the old alternator out of the cradle. When alternator is out, then take a small tick hammer or dead blow hammer and tap the ears forward from the back side. That will create new alternator install space and when you install and tighten the bolts back in, the bolt pressure will move the ears toward the alternator and tighten down the clearance space.[ATTACH=full]6309[/ATTACH][ATTACH=full]6310[/ATTACH][ATTACH=full]6311[/ATTACH][ATTACH=full]6312[/ATTACH][ATTACH=full]6313[/ATTACH][ATTACH=full]6314[/ATTACH][ATTACH=full]6315[/ATTACH][ATTACH=full]6316[/ATTACH][ATTACH=full]6317[/ATTACH][ATTACH=full]6318[/ATTACH]</blockquote>