I use a 24" to tow with when the camper is on. Looks like the 48" is still rated for 6K. Torklifts stuff is as heavy-duty as it gets. Lucky for me they're 10 minutes from my work
*12,000 lb. pulling capacity, 1,200 tongue wt. achieved only when used with weight distribution type system. See Dealer for details, Weight carring capacity on 48” extension, 6,000 lb. pull, 600 lb. tongue wt. Consult your vehicle owners manual for specific towing capacity. Your truck and trailer weight cannot exceed your vechile manufacturers towing, cargo, or GCVWR.
OOps just saw your stinger picture. What's the rating on it. Does it utilize side chains with turnbuckles? If so I'd use it.