How long of extension?
I'm not the weight cops, but a golf cart in the back of a half ton with a roughly 900lb tongue weight on a hitch extension sounds like a bit much, unless you're talking maaaybe 12" or less.
And that said, if you use a WDH idk how it would work with the extra leverage.
I towed our 6000lb boat for years behind a straight 2' long 2" sq draw bar extension with our TC on the truck. No issues, but I was plugging it into a much heavier duty truck.
2016 Ram 2500, MotorOps.ca EFIlive tuned, 5” turbo back, 6" lift on 37s
2017 Heartland Torque T29 - Sold.
Couple of Arctic Fox TCs - Sold