2020 Silverado HD Allison Transmission Isn’t Really An Allison
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The 2020 Chevrolet Silverado HD debuted this week to some, uh, strong reactions.
But while many folks on the internet may not be a fan of the Heavy Duty Silverado’s exterior looks, at least the powertrain seems rock solid: a new gas engine, an available Duramax turbo diesel V8 with 910 lb-ft of torque and a new Allison 10-speed automatic transmission. What’s not to like about that?
There’s one interesting tidbit of information about the 2020 Silverado HD’s hardware you may not have heard yet, though. That new Allison 10-speed isn’t actually made by the familiar Indianapolis-based engineering firm. It will be built in-house by General Motors and simply features Allison branding. The transmission isn’t closely related to the 10-speed automatic found in the 2019 Silverado 1500, as far as we can tell, with General Motors describing the Allison-branded unit as “all-new.”
The only way to get a true Allison-built transmission in your Silverado is to opt for the new Silverado 4500, 5500 and 6500 medium-duty trucks. These monsters will feature an Allison-designed and built six-speed automatic transmission. The new six-speed was developed in conjunction with GM and is designed specifically for use in the gargantuan medium duty Chevys.
It’s not surprising that GM wanted Allison branding on the side of the 2020 Silverado HD. The company is the world’s largest purveyor of automatic transmissions for heavy duty and commercial vehicle applications and has been a mainstay on GM trucks since the 1950s. Chevy’s hard working HD customers have come to know and trust the Allison name and seeing the branding on the side of the truck might give them some reassurance that this new truck isn’t such a departure from older versions of the Silverado HD.
The 2020 Silverado HD will be built at GM’s Flint Assembly plant in Flint, Michigan and will be available in the United States, Canada and Mexico. Pricing has yet to be announced, but stay tuned to GM Authority for more 2020 Silverado HD news and information as it becomes available.
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I have been driving since the 60s the old power glide was a good transmission. Yes the turbo automatic 3 speed was also good. All farm pickups. The 4 speed auto in my 84 GMC I did not have any problems with. I did take it into the dealership at around 130.000 miles and the mechanic was looking and said their was a recall had to do with a transmission our put shaft seal. They fixed it. My 1989 Chevy Chevy 4 speed auto I did put a new transmission in 2010 transmission cooler line broke and my son didnt catch it.
SHIFTS BANG IN OUT WHEN IT WANTS TO, DEALER HANDS ARE TIED, FACTORY DOES’T GIVE A DAM FROM DATE DELIVERY LEFT IT THERE NOT RIGHT FROM DAY ONE IT’S INTERMITENT SO THEY WON’T FIX IT ,OFFERED TO BUT A NEW COMPUTOR THEY TOLD ME THAT IT WOULDN’T FIX IT I HAVE IT ALMOST TWO YEARS OLD 6800 NOT 68000 MILES, MY LAST TRUCK I’M 83 AND DISAPPOINTED
ok who gives a crap if its built at gm! GM built allison transmissions before, during ww2 and after, for tanks and vehicles. This really isnt that big of a deal lol
I HAVE AN 18 H D WITH 65OO MILES I WOULD NOT TAKE DELIVERY FOR 4 DAYS AFTER PAYING IT .IT COULDN’T BE DRIVEN IT SHIFTED
SO BAD,TO THIS DAY THE FACTORY DOESN’T DO ANYTHING THE DEALERS HAVE NO BACKING FOR THEM IT STILL HAS MIND OF ITS. THEY SAY IT WILL ADJUST TO YOUR DRIVING. BULL YOU ARE TO GET ADJUST TO IT ,,,WHAT A CROCK BUMPY SHIFT MAKE REALY NICE TRUCK NOT FUN TO DRIVE,,THINK TWICE
GM died to me when they were nationalized. I’ll never support a government run business. This is just icing on the communist crap cake.
I have been a GM purchaser for over 55 years. The only problem I had with any GM transmission was in a brand new Tahoe. It left me stranded after only 60 miles. The factory had left a pin out in the building process. It was fixed under warranty and I never had a problem before or since. I presently purchased a 2020 2500HD Duramax with the said Allison branded transmission. I expect the same great performance with this truck as I have had in the past.
If you want to go buy a Ford or Ram instead. Go ahead as it is your money and you should spend it on what you feel is best for you. For me, I’m staying with GM and loving every minute of my excellent experience!
I’ve owned 3 gmc trucks and one Chevy. No problems with any. My first duramax was a 2003 2500HD. Put over 260,000 miles on it before trading in. Lots of heavy hauling gooseneck equipment trailers and a 38 foot 5th wheel.. I just bought a 2021 3500 duramax. So far, loving the 10 speed tranny.
Don’t have a problem with other brands except comfort. As much as I travel, comfort is #1 for me…which is one thing I can say GM has done well.
2020 3500 HD. 2nd time at dealership for a transmission fluid leak today. First time required seal replacement and discovered that it was still leaking the next morning. Additionally found scoring to some of the transmission oil cooler lines and fluid pan where they supported it with “blocks” (What?! They don’t have a proper transmission stand?!) I was advised that it may just be residual and would likely stop. Well a week later after wiping away leaking fluid every morning before driving, and I am back at the dealership with fluid on the underside of the transmission! All in all, I’ve had this truck in the service department approximately 15 times for one issue or another (steering,brakes,infotainment, multiple MILs, window, DEF, suspension) over the course of about 18 months. GM still manufactures crap and to their credit, they have been consistent at doing so for a long time. Will not be keeping this truck beyond warranty expiration.
Id take a good ole 6-spd stick any day!
New wantabe Allison 10 speed sucks. Can’t handle anything over stock power. Burnt it up in less than 1000 miles.