Well you got me curious. 2018 big horn extended cab is 10k ish lbs. 2018 big horn reg cab short bed is 9k ish lbs. Both with the Hemi and 3.92 gears. So the difference is 1k or so lbs for the cab (frame) difference, apparently. You taught me something there, as I don’t see any difference other than the frame. But it doesn’t explain the 5k vs 8-10k difference the poster is talking about. I didn’t even see a 2018 Sport in the towing guide.
Scratch that, I found the Sport. The tow rating on the Sport reg cab is indeed around 5k. Tow rating for the Sport Crew cab, same engine and gear ratio, is around 4K.
So I’m lost, unless Sport comes standard with airbags vs coils. Or something goofy.
Ok, kept looking and there’s a Sport crew with a tow rating of 10k lbs. 3.92 gears and Hemi. There’s also a Sport crew cab with a 4300 lb rating. 3.92’s and Hemi.
Ram has a ton of different option packages. And the towing guide is pretty confusing.
I’m back to the he’s got airbags guess.