It pulls like a boss! The trailer weight is 11,697 lbs unladen. I've probably added 1000 lbs of crap. So I'm pulling around 12700 on a 3/4 ton suspension. My tongue weight is slightly over. I've put about 3000 miles on this setup and I LOVE it!
This truck will pull a house off it's foundation. In style I might add. It tows great. Zero sway! The only real difference between this and a 1 ton is the rear spring pack and axle housing. Other then that it's basically the same truck. I know the weight police will chime in on this. People say "you're insurance won't cover you" That's not true.
Anyway to answer your question, amazing well although this would be the max I'd put on this suspension.
Tony & Donna
2022 Montana High Country 295RL, Solar Flex 400, Onan 3600 LPG, 2000 Dimensions inverter
2020 GMC Denali 2500 6.6 Duramax, Demco 21K Auto Slide