i see you have a 2015 model. I that the old rear compartment design? I believe 2016 was the first year to have the sloped rear compartment.
Don’t drive in northern california on hwy 1. If you have the old style then you will drag the rear cap.
2015 dx3 37 rb
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Slim, RVing 30 plus years
2015 Dynamax DX3 37 RB
Been thinking about installing these too. I did trim about an inch off either side of the bottom where the hitch bolts on. It helped, but I think the wheels would protect the tow bar.
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Andy & Debbie Shultz
Harrisburg, PA
2021 Dynaquest XL 3801TS
You have the newer rear compartment design so probably no problem with the body dragging. That was my big issue.
The way my skid rollers are installed have not caused me any problems and has, so far, prevented any other parts of my RV from dragging.