Bob, as you seem to know your Suburban may be able to pull 7,400 pounds but I'd be surprised if it could carry 650 pounds of tongue weight with passengers and gear. What is your Suburban's payload limit? I'm guessing 1,500 to 1,600 pounds. Dealers don't ever want to talk reality.
Winnebago 2101DS TT & 2022 Chevy Silverado 1500 LTZ Z71, WindyNation 300 watt solar-Lossigy 200 AH Lithium battery. Prefer boondocking, USFS, COE, BLM, NPS, TVA, state camps. Bicyclist. 14 yr. Army -11B40 then 11A - (MOS 1542 & 1560) IOBC & IOAC grad