I bought a new pontoon boat and picked it up on Friday. The boat weighs right at 5K with a 500 pound tongue. That's the tongue limit for the Canyon. Not liking to tow at max tongue weight, I added some rear airbags.
I will tell you that my Canyon did find with the tongue, before inflating the air bags. It probably dropped me about an inch. My truck is 4 wheel drive with a leveling kit, so any weight on the back will make it droop a little. If your truck is stock, you should have some rear lift and will probably be pretty close to level.
I like the air bags for stiffening it up a little and to get me back to level. Your truck will be fine. If you intend to tow that trailer on a more frequent basis, you might look at the air bags to give you some leeway when towing. These trucks also handle much better when you inflate the tires to their max while towing. It helps to keep the lighter weight trucks from moving around.
I agree with "impact".....I had mine in Tow/Haul mode and the truck was fine until I hit a grade. The darn thing would drop a couple of gears and start running at about 6000 rpm. I killed the cruise, let the rpm's drop so it would upshift. Just by feathering the throttle, I could maintain the same speed I had the cruise set at, but only running about 3500 rpm. I don't know why it wants to over rev like that.
Don & Mary
2016 GMC Canyon SLT Crew Cab 4WD
(Motor Home Toad)
2" Leveling Kit
Amp Running Boards
OPT7 LED High beams
Morimoto LED Low Beams
Diode Dynamics LED Fog
Electric tailgate release
Air Lift Air Bags