dalek77

Looks like I'll be the first to go to the dealer next week. Out of like 5 trucks of people we know, they're all leaking around that inspection cover.

Just crawled under and saw this..... My buddies 2020 is doing the same thing. 17k miles

I don't decelerate on hills towing 17k, but there is a delay on cruise control before it starts accelerating. Might need to break yours in some more? I agree with exhaust braking, could be better. Love the truck though and I hit my tonneau cover rails often, but they come in 2.75" on each side. My hitch weight varies between 2600 and 3100. Truck will sit quite a bit with that much weight and still unsure if I want bags. Wheel seems a little loose with that weight on as well, but unsure if it's my imagination. Still love the truck as well. Gas mileage is around 10 towing that much too. Dk Sent from my SM-G973U using Tapatalk

Oh it will tow it just fine! Only a 2 3/4" drop, no air bags needed. It lvls the truck out. Sent from my SM-G973U using Tapatalk

Pin weight is 2900 and I'll be adding a golf kart in back. Probably a little water in fresh tank too, but not a lot. Maybe 20 gallons of fresh. Hoping to keep pin weight around 2900. Take care!

Here you go. First with truck, my wife and I. Then with 351M right off the lot. Genny, full propane tanks. I have the reese goosebox, so that's a 230 lb pinbox. Tows great! My GD rep never came through with water tank location, but I believe they are right in front of axles. Haven't done a test weigh with them filled yet. Dale

I'll know my CAT weights in 2 weeks. I also asked my GD rep where the water tanks were to confirm. Sent from my SM-G973U using Tapatalk

Mine was in a weird spot between the driver door and passenger door behind it.

I wanted to know my current axle weights, so I ran over to the CAT scale. PLENTY of room on rear axle and was presently surprised. 7250 GRAWR and measured with full tank and about 350 lbs of passengers. This is spot on with the curb weight and what I was told of being measured with full tank of gas included. Feeling good about this truck even more now. Pic isn't readable so here were the stats. Front 5120, rear 3560. 8680 total Dale Sent from my SM-G973U using Tapatalk

Hey MTU, I think I'm learning something new here and want to clarify. Are you saying if my payload capacity on the truck is 3735 based off the sticker above, it already accounts for 300 lbs passengers, 100 lbs cargo, and 100 lbs hitch already? So in essence I don't use up my payload unless I exceed those numbers? I.E. Truck Payload Capacity is 3735 Trailer pin is 2800 2 Passengers at 300 100 lbs of cargo 100 lb hitch Net Payload would be 3735-2800-0-0-0 = 935 payload leftover still? Thanks! Dale

The grand design Momentums are one of the best THs imo. I looked at the 381m, but it will be way over on gcwr. 32100 if you just add the gvwrs together and the truck is rated for 29700. I don't know if it would happen, but you could get a ticket for that even if the trailer isn't loaded up to gvwr. I heard the state police will just add the gvwrs off the stickers together. The 351M gvwrs are at 16800 + 12100 for 18900 gcwr, but still under legally. In any case, our limitation is pin weight. Fresh tank is up front and adds 1300ish lbs full. Since it's up front, it almost all goes to pin weight and would be about 4k! I don't plan on dry camping so not a big deal for me. I know rear toys help lvl it out, but not 1 for 1 and we only have 300ish lbs to spare. Keep in mind, you need a hitch or get a reese goosebox like me. The goosebox is heavier though by 115 lbs than the stock rota flex pinbox. All that and the trailer battery tale away from pin weight. Gd tells me the uvwr in their trailers include the stock rota flex pin box and propane filled. I'll cat scale mine in a few weeks. Hope this helps. Dk Sent from my SM-G973U using Tapatalk

Your pin weight will be 3180 and payload 3700ish. I have a 2020 gmc 3500 cc slt. I bought a grand design 351M and will have to closely manage my weight, but definitely doable. Just gotta watch the pin weight and payload. My fresh is up front, so I'll have to load the rear garage, etc. Enjoy the truck though, it's nice. Sent from my SM-G973U using Tapatalk

I wish gmc would up the psi to 110 for G rated tires though Sent from my SM-G973U using Tapatalk

They won't stack it. Sent from my SM-G973U using Tapatalk

Might be obvious, but your driver side door was closed all the way? It turns off camera when slightly opened. Sent from my SM-G973U using Tapatalk