Let's see those AT4 1500 trucks towing!

This is my first post
This is my 2019. I just traded in. I don’t have any photos of the new truck towing as I’ve only had it a week.
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Here's my 2021 (new to me) GMC AT4 6.2 hooked up to my approx. 7,000lb travel trailer. The first picture is hooked up with everything factory on the truck and the hitch was adjusted based on the trailer being towed by my previous GMC 3500, so completely wrong for this softer, lighter weight 1500. The second picture has the truck with RoadActive Suspension installed and the hitch completely re-setup.

The squat looks less, and the trailer is much more level, but the front of the truck still looks high to me. I set it up with all the correct measurements according to the hitch manufacturer, we'll see how it does.

First picture with zero modifications.
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This picture has the RoadActive Suspension and re-setup 10,000lb / 1,000lb bar Equalizer.
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This was my previous setup, 2016 GMC Denali Duramax 3500.
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I have to admit that coming from towing with a 1-ton diesel with the exhaust brake and power through the moon, this has me a bit nervous.
 

Here is a picture of my 2025 AT4 LZO with my new 18' tandem with 4' V nose cargo/sled hauler with additional height, built by Southland here in Alberta. It has a GVWR rating of 7716 lbs and has a dry weight of 3631 lbs. so with 2 x 3500 lb axles and electric brakes it has about 4000 lbs of load capacity.
With my 2019 Defender XT HD10 Cab (2400 lbs guesstimate) inside it should weigh in about 6000 lbs. gross weight. The rear door is 82" H clear and 86" wide and my Defender just clears it going in.
The truck and trailer have been levelled on the hitch so that the trailer is level and the truck has minimum squat 2-3". We were able to get the trailer tow height correct by adjusting the vertical height on the hitch and centering the sxs front to back; inside so that the equalizers between the axles and the front to back were level. We do not have an equalizer hitch of any kind and because the AT4 is taller it required several changes to get things right. The towing mirrors are by Snap and Zap and clip over the folding power mirrors without any problems. They do allow you to see the edges of the lanes alongside the trailer so no surprises when changing lanes. The truck software shows the side of the truck when turning so no surprises on wide turns and you can see the trailer tires on the turns.
The trailer flooring is solid poly vinly on top of plywood to protect the floor from being cut by the sled carbides.
Towing towards the foothills in central Alberta I averaged 12 to 14 mpg at 110 km/hr (about 68 mph) so not outstanding mileage but the engine and truck are comfortable towing this package. Winter may be a bit different on the ice.
When towing on a gravel road the air flow becomes visible it flows over the cab, down onto the bed cover, hits the front of the V nose and forms two spiralling vortex one on each side of the trailer.
 

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Pulled a 29 ft camper from TX up to Guanella Pass CO @ 12,000’. My truck has the Baby Max with Bilsteins and Bags, it drove really good but I felt like I was beating the heck out of it to hold 70-80 on the highway especially if you hit a headwind. Filled up with def every 2-3 tanks of fuel and burned 2 quarts of oil on the 2,000 mile trip. I didn’t weigh the trailer but loaded up it was easily 10k pounds, I would pull something that size again no problem but not for that long of a distance.
 

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Is that your own trailer or did you rent it? When we move to NV, I'd like to do something like that to take my E-Class Mercedes from WA to NV.
It's my buddy's trailer. My niece's alternator went out 2 hours away so I went to pick it up. Trailer was awesome
 

Pulled a 29 ft camper from TX up to Guanella Pass CO @ 12,000’. My truck has the Baby Max with Bilsteins and Bags, it drove really good but I felt like I was beating the heck out of it to hold 70-80 on the highway especially if you hit a headwind. Filled up with def every 2-3 tanks of fuel and burned 2 quarts of oil on the 2,000 mile trip. I didn’t weigh the trailer but loaded up it was easily 10k pounds, I would pull something that size again no problem but not for that long of a distance.
Damn 2 quarts of oil... is this normal with the baby Max?
 

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