Mice found a way in and left me some presents, and I head to the shop to remove the seals Lone Peak used and putting on new ones. Took a bit longer than I had hoped, but seems to have done the trick. Thanks for those that have ordered stuff from my etsy store and thanks to those who have subscribed!
Etsy: https://upperleftadventures.etsy.com
Diesel Heater Hose: https://amzn.to/3IVoEO9
Double Bulb Seal : https://amzn.to/3VCqKKr
Tail Gate Seal for Colorado: https://amzn.to/3PBObzG
Lone Peak better rear seal: https://amzn.to/3PGZOWd