Quite a while back I saw a post on here about an upgrade. Someone mounted a battery tray on the frame of a G series van and connected it to the other battery through a relay. Can't find the post so I can't find out where to get the parts. I need to do this to my van this winter so I will have it ready for spring camping. Anyone?

 

You might try searching the forum.

We just had a discussion about relays a few days ago
https://chevroletforum.com/forum/exp...houghts-93179/

Mounting aux battery
https://chevroletforum.com/forum/exp...e3/#post366223