Hydra-Matic News

Relive The 2021 GMC Yukon Reveal: Video

The SUV made a stunning first appearance during a Colorado winter.

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Used Prices Of 2019 Cadillac CTS-V, CT6-V Are Quite Similar

These considerably different performance luxury sedans are worth surprisingly similar amounts.

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GM Initiates Pilot Program To Replace 9T65 9-Speed Transmission

The automatic transmission is found in a variety of GM crossover models.

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Rare 1971 Pontiac Firebird Trans Am ‘Tirebird’ Heads To Auction

The only surviving Tirebird promotional car can now be yours.

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2021 GMC Terrain Denali Will Start Production February 2021

The range-topping model will rejoin the lineup very soon.

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Optional 20-Inch Wheels No Longer Available On 2021 GMC Acadia AT4

Smaller wheels with all-terrain rubber are now the only game in town.

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Turn-Key GM LS And LT Engine Swap Packages Offered By Speartech

Just drop it in, turn the key and go!

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2020 GMC Sierra 1500 Gets Transmission Downgrade: Exclusive

Certain models swap the ten-speed for the eight-speed.

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2020 Silverado High Country Gets Transmission Downgrade: Exclusive

Some models that were previously equipped with the 10-speed automatic transmission will now get the 8-speed.

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Multiple GMC Acadia Owners Report ‘Shift To Park’ Issue

GM has a technical service bulletin for the problem, but no official fix.

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New SuperMatic 6L80E Six Speed Transmission Can Handle 650 LB-FT

Have a high-horsepower build? The SuperMatic is for you.

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Chevrolet Camaro Rock Bouncer Build Will Conquer Any Trail: Video

This is what happens when two very different worlds collide.

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Lawsuit Brought Against Ford Transmission Co-Developed With GM

Could the GM unit exhibit similar problems?

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TSB Seems To Fix 8-Speed Automatic GM Transmission Problems

A transmission flush using a new fluid may finally fix the shudders and harsh shifts of GM's 8-speed gearboxes.

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Doors Close At GM’s Warren Transmission Plant In Michigan

Thank you and goodnight.

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The GM 8-Speed Transmission Needs To Go Away ASAP: Opinion

The fact that the 8-speed is still around is mind-boggling.

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More Owners Complain Of GM Transmission Defect Amid Pending Lawsuit

The eight-speed automatic transmission found in numerous GM vehicles is the alleged problem.

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GM Hit With Class-Action Lawsuit Over Alleged 8-Speed Transmission Defect

The litigation claims numerous owners have experienced issues with the 8-speed automatic transmission.

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2019 Chevrolet Camaro ZL1 1LE Adds 10 Speed Automatic Transmission

More choice is always better.

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General Motors To Shutter Baltimore And Warren Transmission Plants Amid Cuts

GM's Alison 1000 HD truck transmission and 6-speed automatic will both see their production runs end.

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Early Tech Adoption Could’ve Been Why GM Brands Faltered In Auto Reliability Study

Early adoption, early gremlins.

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No Need To Go Beyond The Ten-Speed Automatic, Says GM Transmission Electrification Boss: Video

Electrified transmissions could find themselves in future GM products with gas engines.

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10 Ways GM SUVs Benefit From The New 10-Speed Automatic Transmission

10 benefits of The General's new 10-speed.

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Comparing The 2019 Silverado Engine Lineup: Power, Torque, Engine Design & More

All six engines, in one concise table.

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Ford Has No Plans To Use Nine-Speed Automatic Co-Developed With GM

GM and Ford shared development of new ten- and nine-speed transmissions.

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2018 Buick Regal GS: First Drive

The 2018 Buick Regal GS offers refined styling, boy racer handling, and utilitarian packaging.

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