Here Is The 2024 GMC Sierra HD51
GM has unveiled the refreshed 2024 GMC Sierra HD, debuting fresh exterior styling, a new interior, a revised trim level lineup, powertrain updates, and more.
The latest 2024-model-year refresh is highlighted by the arrival of the premium 2024 GMC Sierra HD Denali Ultimate and GMC Sierra HD AT4X off-roader. Denali Ultimate models are characterized by Vader chrome exterior bits, 20-inch Ultra-bright wheels, and an Alpine Umber interior.
Outside, the 2024 GMC Sierra HD boasts a new exterior design that includes revisions to the front bumper, fascia, and grille, as well as six new exterior colors, with Titanium Rush Metallic, Sterling Metallic, Volcanic Red Tintcoat, Redwood Metallic, Meteorite Metallic, and Downpour Metallic joining the options list.
Inside, we find a unique interior treatment for SLE and SLT trim levels, as well as a premium interior design for AT4, Denali, and Denali Ultimate trim levels. A wide variety of available trailering assistance tech can be had via the GMC ProGrade trailering system.
Speaking of trailering, max towing figures are rated 21,900 pounds for 2500HD Crew Cab models, 22,500 pounds for 2500HD, and 36,000 pounds for 3500HD.
Under the hood, the 2024 GMC Sierra HD is once again offered with the optional 6.6L V8 L5P turbodiesel Duramax engine, which is now uprated at 470 horsepower and 975 pound-feet of torque, as compared to the 445 horsepower and 910 pound-feet of torque produced prior to this latest refresh. Standard spec is the naturally aspirated 6.6L V8 L8T gasoline engine, once again rated at 401 horsepower and 464 pound-feet of torque. Both engines pair with the Allison-branded 10-speed automatic transmission, replacing the GM six-speed automatic transmission equipped by gasoline-powered Sierra HD models prior.
The refreshed 2024 GMC Sierra HD will arrive in dealers in Q1 of the 2023 calendar year. The new 2024 GMC Sierra HD AT4X will launch later in 2024. Official pricing details are expected closer to the start of production.
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Way better than it’s cousin. Way better! This puts it right up there with the Super Duty. The gm homers hate the fact and won’t admit the Super Duty is a better looking truck. If the prior models like the Chevy weren’t dogs, they would not have had to do a refresh.
Serious question. Why do you not like the column shifter? It keeps it out of the way and gives you more space in the console. I just don’t understand the hate for the column shifter.
Sounds like a 1st world problem for some of these people.
I see the pros/cons of it in either position.
On the column, you get the free center console space, but it also could block the radio controls and that big screen.
On the center console, you don’t have anything blocking the screen, but it can get in the way.
Doesn’t bother me either way.
I’ve been driving pick ups with column shifters for 40+ years, and I’ve never had one that was in the way of the radio. I’m quite happy with the column shifter in my 21 Denali, and the extra storage space it leaves in the console. These are trucks, not sports cars, and anyone who buys one thinking they’re getting a sports car is just fooling themselves.
I hope the HD Denali Ultimate at least comes with a 6.5 box, unlike the pretty useless 5 foot one that’s required with the 1500 Denali Ultimate.
A big problem is on American cars, it prevents a right hand stalk, which means you have to fiddle with all the tiny wiper controls on the left stalk. This is particularly bad on the SUVs where you have rear wipers, auto wipers, and auto high beams all stuck on one stalk.
The Japanese do put two stalks per side, but if you look at their designs (e.g. Tundra with bench seat), the shifter has to be way extended for proper clearance, so it blocks the radio. And is ugly. That’s why they ended up grafting a conventional shifter to a vertical panel (older Honda CRVs, Nissan Quest).
No HD trucks come with a 5 foot bed. All 6.5 or 8 foot
First truck had 3 pedals, floor shifter, pull floor hand brake AND 1 button to use for a toe heal to start the real truck. Oh the hand brake clamped the output of the hugh trans.
I’m in a refreshed 2022 1/2 and I’d rather have the column shifter
I sell GMCs and I deal with this ALL THE TIME. A guy just this morning saw the refreshed 1500 interior for the first time and commented that GMC finally got a console shifter, just a decade behind everyone else. I asked why that matters, as I personally have an old Tundra with a console shifter and I would rather have it out of the way. He couldn’t even tell me why it’s important. I sincerely do not understand the hatred.
The only plus side is that I no longer have to deal with customers wanting me to put a jump seat in an AT4 or Denali so they can have a 6 seater truck with (nearly) all of the features. I’ve done half a dozen of those. At least on the 1500s I can now tell people it’s not possible because of the console shifter. For that reason and no other I hoped for the same on the new HDs.
How much does that usually cost to put a jump seat in with the HDs?
I was charging $1500 for parts and labor. The biggest expense is a jump seat which has to be sourced from a wrecked truck as it would cost thousands to piece it together from the parts through a dealer and you can’t order the entire assembly. You need an truck with AZ3 bench seat RPO code to get the under seat storage and rear air. Typically $200-300 for a cloth on in good shape and then you can get a Katzkin dealer to re-cover it for you, or anywhere from $400 to $800 for a leather one (eBay also works).
There are two dash trim pieces to cover where the console used to go. GM part numbers 84127262 and 84690976. One will feel like I gave you the wrong part number, and comes in a comically oversized box. Definitely looks like some dash component but for some other truck configuration, but you’re just holding it wrong. Forget the intuitive way you expect it to mount. Flip it upside-down. I think it’s something like $100 for the two pieces?
You need the bench seat front floor liner to cover the gap in the carpet where the console bolts down.
As long as your jump seat came with the internal air ducts intact you don’t need any parts for that. They mount to the same one that goes over the floor pan as the Denali/AT4.
You lose your Bose subwoofer so the Kicker under rear seat subwoofer upgrade is highly recommended.
DO NOT forget to remove the key programming module from the center console or you will have no way to program a new key or use one with a dead key fob battery. It’s a ring and 3 connector wire. It will be a real challenge to route the wire harness in a way to preserve that functionality where it goes on the back of the under seat storage tray in the jump seat. I recommend tucking it under the dash instead, in a place you’ll be able to locate when needed. (Different component for the bench seat configuration, with a longer pigtail, but the connection and functionality are the same.) It’s very rare to get the bench seat with that module intact.
There’s a reasonably helpful YouTube video someone made on his swap. He also uploaded a 3D printed bracket to hold the rear seat heater buttons which I found very helpful. (Use ABS not PLA due to the cabin temperatures in summer.)
I’m sure this is more than you were expecting and definitely less than you need to actually do the whole job, but figured I should put the info out there. I’m done doing these swaps. The last one turned into a nightmare when the parts dept ordered me the wrong seat and wrong kicker audio part number and other issues. Now I just tell people about the YouTube video.
You MUST remove the driver and passenger seats to do this swap. MAKE SURE you torque the seatbelt bolts properly afterward. If there’s any doubt what that means or how to do it don’t even start this project!
Good luck with it if you do! It’s actually quite satisfying when you’re done.
Many have come to trucks from coupes and coupes and consoles and shifters.
I have always liked a floor shift but never begrudged anyone who wanted it on the column.
It is just a matter of preference no right no wrong.
My wife’s SUV has buttons and then there is a whole different argument. Lol!
Column shifter… good!
Column shifter for me.
I drive with my left and rest the right on the shifter in case of emergency it is close to the wheel.
It’s a subtle change but better. Seems like GM is afraid to make too much of a change in there refresh the last couple of years. I feel like they could have done more. Same goes for the Silverado, Camaro, Terrain…etc.
Looks really good, and I’m a Ford guy. If we didn’t spread so much salt and push snow I’d buy one to try out.
I like the new front end. Looks way more aggressive, yet classy all in one! Needed to do something to the gas engine. Would have been awesome to see GMC step out a little from Chevy and offer a new upgraded gas motor.
It’s GM where “gas motor” is now considered dirty words. I’m just glad we can still get any gas engines from Mary’s GM!
I am not a so called Truck Guy but why does the Sierra and Silverado HD’s come with the ancient Column shifter still?
Is there a specific reason?
Frees up valuable console space. Same reason the Ford Super Duty still has a column shifter. Ram uses the rotary dial shifter on trucks with the ZF trans, and Cummins trucks with either the 68RFE or Aisin have a column shifter as well.
I understand that logic but the 1500’s have electronic shifters on the middle console so why wouldn’t GM do the same for the HD’s?
Has to be a specific reason right?
More intuitive to use, easier to use with gloves on, and easier to switch from drive to reverse and back quickly by feeling the detents instead of having to look at the electronic shifter. Also, as a vehicle intended for work, it keeps it from wasting space on the console. 1500’s are basically family cars at this point.
“easier to switch from drive to reverse and back quickly by feeling the detents instead of having to look at the electronic shifter”
That’s only an issue with certain designs, like Ram and Ford’s dial shifter. The stalk shifter on the Silverado EV and most Mercedes just requires you to flick up and down. Button shifters, like GM uses on the SUVs, don’t have this issue. The latter two are easier than a traditional column shifter since there’s no possibility to overshoot.
I wouldn’t mind a stalk type shifter, I just don’t want it in the console or on the dash.
The 6L90 transmission on the gas engine HD’s has no electronic shift. The electronic shift models are exclusively 8 and 10 speed.
Column shifter are solid and very reliable. The console shifters require a electric motor to operate the shift selection and is not as proven under harsher working conditions.
How do you figure? I’m 99% sure all vehicles are electronically shifted now, it doesn’t matter where the shifter is. It’s actually easier to make a mechanical console shifter than a mechanical column shifter. Cables on a console shifter have to go about 3 feet in a straight line, on a column they go 6 feet down a column through the fire wall down the firewall and back to the transmission. Listen I love a column shifter, but your argument is completely invalid.
You obviously have no idea how the GM truck is designed. It does have a cable but it does not go out the firewall but rather out the floor under the drivers feet. Cable may be 6 feet in total length. Cable on a console shifter will be nearly same length as cable enters transmission from rear.
Because column shifter is still preferred.
Hold on a second, people are still waiting on 22s and 23s to be delivered and they are promising 24s in Q1 of 23?
Out of all the Heavy Duty trucks that have been revealed lately so far, this looks the best in my opinion.
It looks good but I give Ford the edge because of the mirrors and wheel wells. Frontend wise, it’s according on the trim.
Yeah, they both have their strong and weak points, no truck can be perfect
I wish someone would photo shop round wheel wells onto this. Personally I think it would look like garbage and if they did it everyone would say they copied Ford. The mirrors assuming they are mostly like the current ones are pretty darn good for seeing stuff behind you. They aren’t the best looking, but I like the placement way more than my current 2015.
Still no panoramic sunroof huh
I’ll take mine as the Denali ultimate duramax. Then I’ll add dual exhaust, a toolbox, and custom wheels and a 3 inch lift. Oh, wait, that’s if I win the lottery.
they finally did it, this is the first gm truck front end i dont hate since 2013
Why is the storage console so big. I would prefer a wider more comfortable seat.
None of this matters because we can’t get the trucks anyway. I’ve had one ordered since the day GM did the online sign up for $100. So far nothing.
What a terrible spot for the Trailer brake. Valuable real estate wasted.
It’s a safety matter. When a trailer fishtails you need instant access to manually apply just the trailer brake to bring it back in line and under control. You don’t want to hunt for it. This is a MUCH better position than behind the wheel on the left side of the dash like they used to be. Hard to imagine anyone who has ever used a trailer brake in an emergency situation who would disagree, but no doubt there would be anyway.
WTAF is going on with this center console? I don’t want a console shifter but it would be better than a rarely used controller. I touch my cup 20 times in a 500 mile drive. I don’t want to reach over something I use once. I will probably buy a denali but I’m ripping out the gmc console and putting in the chevy one before I drive it anywhere.
No other truck has it there. Ive had 3 diesel trucks in the past and currently have a 2021 Ram. I guarantee in an emergency situation your trying to correct your steering, than hitting that emergency trailer brake/gain function. Very few people actually reach for the trailer brake. Every other truck has it on the dash. Not where your small belongings are or cups go. And if your that concerned about “safety” and needing the trailer brake where your cup should be…well… i would assume you have much greater personal issues and probably shouldn’t be towing. Just sayin’
Am I correct in seeing that the ultimate package will NOT be on 3500 DRW?? Every video/article doesn’t mention this but they are purposefully not showing the Dually in the ultimate package…This is going to be a HUGE bummer if it doesn’t for some reason.
Anyone with any insight into this question??
“Am I correct in seeing that the ultimate package will NOT be on 3500 DRW?? Every video/article doesn’t mention this but they are purposefully not showing the Dually in the ultimate package…This is going to be a HUGE bummer if it doesn’t for some reason.”