I used spray foam and green insulation to insulate my truck. Helped a ton!
I had a 5000 BTU window air unit running in 90-95 degree during the day and I was perfectly cool. I was even parked in the sun.
The insulation makes a huge difference.
I also closed the wrap around curtain, and the middle partition curtain as well.
I would also idle the truck full blast AC for a while, let everything cool down.




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