I have a 2016 Suburban LT. I'm trying to install an aux battery to power some ham radio gear. I had this set up in 2011 Hoe, but sold it when I got the 2016. I can't figure out where the battery retainer should be bolted in on the aux batt tray. I've tried every hole and bolt that is there. The bolt that came with the retainer is a 13mm. All the bolt holes on the tray are 10mm. In my 2011 Hoe this was easy. The bolt hole was very easy to find. I've looked at all the diagrams on the link below, but haven't had any luck. Can someone with an aux batt set up in a 2016 Burb or Hoe post a pic of the retainer location? Greatly appreciated.

https://www.gmpartsonline.net/v-2016...rical--battery


Aux Batt Tray

 

it goes through the hole at the front of the tray AFTER you put the battery in. Make sure it fits first. You need a nut to go with that bolt.

 

Or really get crazy and have the right size nut welded in place to allow the bolt to thread right in.

 

That's how the 2011 Hoe was. I would have assumed that they just did that for the 2016. I have access to the 2011. The guy that bought it isn't using the aux batt. I may see if I can go raid parts from it.

 

Yea, do that. Is the existing tray the one that came with the truck or is it an after market purchase.

 

Figured it out thanks to this video. I needed to swap out the tray for GM Part number # 22989633.

 

These are the parts I ended up having to get.

Battery Tray - GM (22989633)
https://www.gmpartsstore.com/oem-par...-tray-22989633

Retainer - GM (84109393)
https://www.gmpartsstore.com/oem-par...ainer-84109393

Hold Down Bolt - GM (11516700)
https://www.gmpartsstore.com/oem-par...-bolt-11516700

I also bought the brace. Not sure it is needed, though. I left it out for now. We'll see what happens.
Battery Tray Brace - GM (22829069)
https://www.gmpartsstore.com/oem-par...brace-22829069