2021 Chevy Duramax 3.0 Overloaded 12000 Pounds! How Did IT DO? 

Been looking for THIS video for weeks. Real world overload of THIS truck. Thanks man. I have been a 3/4 ton guy for a long time, but I hardly tow at all any more. This weight is exactly what I would tow a couple times a year at most…thanks. This at least lets me know it’s doable, and relatively safe.

Great video! I think this is the most weight that I've seen a 3.0 tow on youtube. I was impressed to see that it just idles down the highway at 1200 to 1500 RPM. The 5.3 would definitely had to have been turning way more RPM to produce the torque. I really like my 3.0 but haven't towed anything with it yet so this was good to see.

I have a 2021 3.0L duramax elevation. I tow my pressure washing trailer with it 3-5 times a week. It has a 500 gallon water tank and when full, that alone is 4300lbs. With all the other equipment plus trailer when full it's weighs approx 8500lbs and it handles it just fine. I've towed with it since new and now have 51k miles on it. I make sure to take care of thr Maintence on it such as diff oil changes and recently changed transmission oil at 45k miles. I use amsoil for everything including oil changes.

This is really the best towing video I've seen here. I like this man isn't really trying to promote the truck but rather demonstrating its ability to tow heavier than factor set loads. I myself own a 2022 chevy silverado with duramax on it. It's amazing. We just need the diesel prices to go down now.

interesting, i know its not what this truck was made for, but its good to see what it looks like beyond the limit. i had anxiety about pulling an enclosed trailer w/ mine but i should be just fine.

The truck has a lot of power, but the concern is your suspension and your gear box it's only rated to tow 9000lbs. If you got the trailing pack❤ag, it can tow up to 13500lbs

Good video nobody has made a video like this, I subscribed, knowing my 3.0 Duramax is capable

Great video! Super informative and holy smokes is the 3.0 a beast

Nice to see a heavy tow from the 3.0L. Now that they have the tow rating up to 13k with the 2023s I'm considering trading in my 2500 for one. Also thought those hills looked familiar. Spent my summers in Endicott and vestal at my grandparents growing up. I live in northern Michigan now and kind of miss upstate New York.

The cars zipping by sounding like steet bikes during the fast motion part at the end lol

One thing I have found with my 2022 GMC 3.0 babymax is that it will pull wayyyyy more than the truck can handle. The rear leafs are freakin weak. I am going to put the helwig add a leaf or the overload bump stops. Very little weight and it’s bottoming out. They are sprung soft! But. Saying that. This is my favourite truck I have owned I think. It’s an awesome little truck.

The hill descent control is just for steep off road grades going slow. The exhaust brake should come on with the tow haul. Get some air bags or timbrens. You also need a weight distribution hitch for that load to help transfer some weight to the front axle

Great video, thanks for putting it together! I've got a 2020 Duramax 3.0 with the X31 package and I've hauled close to the 9,500 pound limit. The engine and brakes seem to handle the load fine, and the transmission temp on mine never went high. If I was towing like that all the time, I might worry about the rear end, but I don't really know. I'm betting that GMC could raise the limit, and I wish they would for liability and warranty reasons.

The LZ0 3.0 is going to be a massive homerun for GM. HP going up to 305 and torque jumps to 495ft lbs. Can NOT wait for mine next year.

There’s a trailer weight distribution bars attachment that is to help transfer a fair percentage toward the front. When overweight not only is it squatting the front is lifting up

Just think how well it would’ve done with a 3.43 ratio up and down the hill. I love my 3.0. Probably the best vehicle purchase I ever made.

Great Video! Thanks! I like seeing real life things and reviews. I love my 3.0 Duramax Silverado. I just bought a Travel Trailer that weighs 9k+ lbs and it Towed Great From the Dealer to Home a State Away.

I know them hills!! I have hauled over them plenty of times haha… Glad you like the truck. I just recently bumped up from a 2015 Sierra 6.0 to a 2015 GMC Sierra Duramax. Just happened to be the duramax was a crew cab and that’s what I needed in a 3/4 ton truck. So far been in love with it. Can’t wait to see what it will do plowing snowing this winter.

WOW .. been thinking of getting the 3.0L Duramax on a GMC Sierra .... great to see your results. BTW, I grew up in Morris, NY and instantly recognized the roads you were driving!!! LOL

I guess me worrying about purchasing 1 to haul my 9000# camper isnt really a worry at all. I am very impressed.

Great video keep,up the good work

I popped a pedalmonster on my x31 3.0 and it made a huge difference.

I pulled about 6k lbs car+trailer in my '20 Z71 RST about 550 miles. Truck said 17.5 MPG average. I could hammer down and get up to 70 at the end of the ramp every time. I think yours is right on the mark with the load you were pulling. After pulling with a 5.3 and 6spd and getting 7-8 MPG previously, I will never go back to gas. The flip side is the 6.2, but the premium fuel requirement was a no for me which is why I went with the 3.0. Half of the magic with the 3.0 comes from the 10spd trans which is all around good even with the 3.23 rear gear. Emissions aside, they can get more power out of it, but the 1500 chassis and driveline components probably couldn't take it. I'm happy with mine exactly the way it is. Typically 26 average daily and 29-30 on long highway trips. I rarely get less than 600 miles to a tank. I think I had 490 once when doing a lot of slow city driving.

What brand is your trailer? Just started a junk removal/ hauling business! Looking around for a dump trailer!

What was the transmission oil temperature while doing this test?

Beautiful place u live ❤ I got 11 mpg highway with my v8 Nissan Titan with pulling nothing 😤 6 inch lift and 35’s

I currently have a 2020 f250 with the 7.3 and 10 speed.Would like to get out of a 3/4 ton. I am very interested in the 3.0 duramax. I have a 14ft dump trailer and a 33ft travel trailer and was curious how the baby duramax would pull it. Also would need to find out if a snow plow can be put on it. I’m not far from you in the Ithaca Area. How are you liking this truck and any major issues or concerns?

Great video man.

I towed a boat,(8500 lbs) total weight with trailer, with my 2018 5.3 Silverado and it struggled. Up hill it dropped down to 50 and would not go any faster. It has 9300 max towing weight too.

Man the video I needed to see. Thanks big dog

You still have the truck? How’s the reliability ? How many miles You got on it right now? Any regrets u bought this truck?

I"m in the process of buying a 2022 3.0l Duramax from Gault and was wondering why there wasn't a brake controller installed in the truck. After watching your video, I see there is a different system for stopping with a loaded trailer on these new vehicles and it works rather well.

I looked online at one in my area (Tampa) with a 20K down payment I was looking at a $700 a month, little to much for me so I'll keep dreaming ....should have listen to my Pop , he told me Marry for money , Love will come later ...LOL

get a set of sumosprings great video I've been looking for a video like this

I work for the company that makes the parts for this 10L80. I have to say I’m impressed to see how good it’s doing. HOWEVER!! Make no mistake. You got lucky when being careful. That kind of weight really should be done with a 6.2, if you stay with a 1500. Otherwise, I would recommend a 2500 Gas.

thanks for showing the tail end drop. I have 1500 Rst, with the 5.3L. I want to add a goose neck kit, as i get some squat when i tow certain configs. do you have a goose neck hookup? do you know how that diesel performs with similar load, but goose Neck hookup?

That's one thing on these engines that I have seen alot. The computer under rated the mpg by 1 or 2 mpg

Picking mine up here in a couple days. How much DEF do you go through? Thats the only part im not excited about.

Do you have a CDL? I was told any trailer over 10k you need a CDL to pull

Having a 🍺watching them work

did you happen to look at how hot your transmission got?

Love mine ! Awesome truck .

That's really impressive. What rear axle ratio do you have?

This is the first of your videos I've watched. My first impression is that you look like a slightly smaller Robert Oberst. He's a huge dude, so don't be offended at that comment. 😉

Here in Canada anything over 5000lbs you need a weight distribution installed

Thanks for posting this man. What's your rear diff? I have a 3.21 and am thinking about a 3.92. How was the braking? I read that these engines can take it but the brakes suspension are what the tow and haul limit is based on.

My Bobcat weighs 6100 lbs and the trailers about 2000 lbs. Should do it!

what is the rear end ratio in your truck. looking at new one rear end is only 3.23 any thoughts.

Do you have the max tow package?

Its about how you can control or stop in an emergency

I thought that some of them can tow up to 11800.

Nice truck!

so my 6,000 lb travel trailer would be NP. : )

nice video thanks for the info

I want one!

I want that 2.7 4 cylinder in a GMC.

I pulled 7200 pounds with mine and gotta say it didn’t like it at all. Pedal to the metal and it struggled to do 30mph up my small inclines. Otherwise i loved it. Fantastic fuel economy

How was your Transmission Temperature?

Should be nice pulling sleds to Jackman

Love it!

You should trade it in on the new one it can tow 13300

Everyone always talks about torque,of a diesel but watch the STV with the Diesel vs Eco boost and the Diesel doesn't have the horsepower to pull like a gas motor, If you want real gas mileage you need to fill up do a run than see how much fuel you need to fill up that's the only real way to do gas mileage, congratulations on the new truck very nice👍👍That pretty truck will be pulling that matryx soon😂😂

The rear suspension is too soft for towing

You clearly need a 2500!

You wont be happy until the rear engine belt driven oil pump let's loose around 150k miles and to repair it the transmission must be removed this is the reason I didn't buy a truck with the 3.0 dmax

Just get a real truck if you want to tow that much. My 6.6 would hardly notice that trailer

Another reason not to buy a used truck!