Did any LS Vehicles come with a side post Alternator?
I wound up using Tuff Stuff 82061 on my dad's 64 Impala. It is a CS130D with a side post terminal.It was a perfect fit for the F-Body/GTO alternator location.
https://www.summitracing.com/parts/tff-82061
https://www.summitracing.com/parts/tff-82061



