So now that I know what I'm looking for I inspected more closely, wet bolts on the Road Armor equalizers and spring hangers. The spring hangers are heavy duty and it is the 6000 lb Dexter Gladiator® thick wall axles with upgraded springs . I think I'm going to start by adding the Sumo springs and see how that affects the ride. 
This was interesting.
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Tony & Donna
2022 Montana HC, 295RL, Solar Flex 400, Onan 3600 LPG, 2K inverter, 200AH Lithium. 2020 GMC Denali 2500 6.6 Duramax, Demco 21K Auto Slide
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