Chris, congrats on the trailer- thats a great floor plan. We need more information on your Suburban- rear axle ratio, max payload, max tow rating, rear axle rating, four or two wheel drive. From the numbers of your trailer it looks like you will be at, near, or possibly over your Suburbans ratings depending on how it is equipped and factors like Donn mentioned- passenger and cargo weight INSIDE the truck.
Length 28'0"
Width 8'0"
Height 11'1"
Hitch Weight 850 lbs
Dry Weight 6,366 lbs
Cargo Weight 1,634 lbs
Fresh Water Capacity 60 gals
Grey Water Capacity 76 gals
Black Water Capacity 38 gals
Furnace BTU 30,000
Sleeps 9
Tire Size ST225/75R15D
Slides 1
2013 Suburban
*Weights and Capacities
MAXIMUM TOWING CAPACITY** 8100 lbs. MAXIMUM PAYLOAD** 1526 lbs.
GROSS WEIGHT 7200 lbs. CURB WEIGHT 5674 lbs.
ANGLE OF APPROACH 16.9 degrees ANGLE OF DEPARTURE 20.5 degrees
CARGO CAPACITY, ALL SEATS IN PLACE 45.8 cu.ft. MAXIMUM CARGO CAPACITY 137.4 cu.ft.
** When adequately equipped, which may require engine and/or other drivetrain upgrades.
DriveTrain
DRIVE TYPE Rear wheel drive TRANSMISSION 6-speed shiftable automatic
The 6 speed transmission is great for towing. You likely either have a 3.08 or 3.42 rear axle ratio- hopefully the 3.42. Your trucks actual payload number should be on a yellow sticker inside on the drivers door.