Now for something completely different: 2023 Chevy 3500 Extended Express, Yea I know.....It isn't cool.

chuppie

Observer
The test Run. It is 42 outside, heater has been on for about 10 minutes on lowest setting. It's about 64 inside the RTT. All the windows are zipped up. Temp is slowly climbing.
 

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chuppie

Observer
4 crossbars vs 3.
What a PIA to remove one and center the other. Live and learn. Don't set up cross bars until after the tent arrives.
 

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chuppie

Observer
Added a high and low temp cut out for the lithium battery charging. Off at 35 degrees and off at 110 degrees. Lithium batteries will be damaged if you try to charge them at low and high temps. The relay both prevents charging from the DC to DC charger and from solar charge controller. This was an enormous amount testing. I first tried digital thermostats but settle on analog since they don't draw vampire power.
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chuppie

Observer
Made 2 under seat boxes to hold misc stuff and to store the jack which was mounted in a really stupid location in the cargo area from the factory.
Again, this is all a prototype to see how it works out.
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chuppie

Observer
A couple of back seat consoles to hold kids water bottles and their phones and games.
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chuppie

Observer
Some additional storage for my Yellowstone trip.
 

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chuppie

Observer
Rear brake lights attached to hitch cargo carrier.
 

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chuppie

Observer
Built a front hitch. Unfortunately nobody made one to fit this model. To it was a ton of work but now I can bring bikes and the cargo boxes.
 

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