Originally Posted by Lori Meyer
The rating for the Suburban is 8,100 ...
GVWR (4WD) 7200/...
Can we pull the TT with this vehicle? ...
Pull? Probably. But tow without exceeding the GVWR of the Suburban? Probably not.
The tow rating is misleading. It tells you the maximum weight of any trailer you an tow without overheating something in the drivetrain, and without being the slowpoke blocking traffic on hills and mountain passes, ONLY
if absolutely nothing is in the SUV except a skinny driver. But nobody tows with an empty SUV, and you probably won't either.
So ignore GM's tow rating and compute your own. Here's how:
Load the Subby with all the people, pets and gear that will be in it when towing - including the shank and ball mount for your weight-distributing hitch. Drive to a truckstop that has a certified automated truck (CAT) scale. Fill up with gas, then weigh the wet and loaded SUV.
Subtract the weight of the wet and loaded SUV from the GCWR of the SUV. The answer is your real world tow rating. It will probably be a lot less than 8,100 pounds.
However, even the real world tow rating is not usually your limiter with a Suburban tow vehicle. The tow rating is based on the amount of weight your tow vehicle can PULL
but ignores the amount of weight the Suburban can CARRY
. IOW, how much hitch weight can your tow vehicle handle without being overloaded?
So subtract the weight of the wet and loaded Suburban from the GVWR of the Suburban, and the answer is the maximum hitch weight you can have without exceeding the GVWR of your tow vehicle. Divide that maximum hitch weight by 0.15 and the answer is the heaviest tandem-axle trailer you can tow without being overloaded over the GVWR of the tow vehicle.
Since your Suburban is the 1500 model, then your current trailer probably gets very close to maxing out the suspension of your Suburban. To tow a heavier trailer without being overloaded you'll probably need a 2500 model Suburban, which has more GVWR for the increased hitch weight of a heavier trailer.
I can't find the specs for a Keystone Laredo 24RKS, and I looked back to 2002 model year. You said 6,800 pounds, but I'll bet that is the dry weight and not the GVWR or wet and loaded weight.
We have a Keystone Sprinter 25RKS (25' 5er with rear kitchen and a big slide) parked outside our back door right now. We bought it new in 2000. Wonderful RV trailer that we've drug all over the USA. But it weighs 8,000 pounds when wet and loaded, and it overloaded our F-250 tow vehicle. So it's parked now and Darling Daughter is living in it while she recovers from cancer surgery.