Any Tahoe or Yukon owners here? Alternator upgrade? Dimming lights?

[cichlid_baby 10+ year member]

I have already done the Big Three upgrade and have Brand New optimas (dual set-up not isolated) but I am still getting dimming. It's quite noticable. Looking to possibly replace my HO alternator with another one. Maybe a better one.

Questions..

Have you decided to do the Alternator upgrade yet?

What brand or model did you decide to go with?

What was your voltage before and after the upgrade?

Are you still getting dimming lights?

Are you running dual batteries?

Big 3 done?

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