I tow my Chevelle 3500 lc in an encloed trailer with my 6.2 At both my 2017 and now my 2023
I tow 2000 miles one way canada to Arizona every year for the winter
I have Sumo Springs same as Timbrens & a good equalizer hitch properly set up
Tow in L8 at 2000 rpm 70 mph
Absolutely no problem lots of powerto pass and brakes are not an issue trailer has 4 wheel brakes
No sway passing semi’s or going thru mnts lots of power
Last spring averaged 11 mpg
If alot of headwinds mileage goes for a crap

a good WD hitch is key with 1500 IMO
I use the E-Q- Lizer brand has built in sway control not cheap but way better than the chain style bar systems
Ive seen lots of 2500 pulling enclosed with basic bumper hitch they dont sag but they sure sway