I wrote back in November that General Motors and Allison Transmission were set to part ways after decades of collaboration.

In the fall of 2025, General Motors was about to do something drastic. It was planning to remove the Allison Transmission ...

While news broke last fall that GM was planning to remove Allison branding from its heavy-duty pickups, the companies have ...

One day, you know someone's going to talk about the rare GM trucks missing an important badge ...

SVE has announced the latest addition to its go-fast lineup, showing off the new 2026 1000HP Sport Edition GMC Sierra HD, powered by a supercharged 6.8L V8.

Sales of the Chevy Silverado HD and GMC Sierra HD have been gaining ground recently, but a new competitive threat could pump ...

For the ultimate heavy-duty truck in GMC’s lineup, there’s the 2025 Sierra 3500HD, fresh off 2024’s major update. This year, the Sierra 3500HD carries over with a series of small tweaks to its trim ...

The GM L8T 6.6L V8 engine developed as a direct response by the General Motors to the demand of the owners of heavy-duty ...

GM is issuing a recall for more than 132,000 Chevrolet and GMC heavy-duty pickup trucks over an issue with the tailgate, which may unexpectedly unlatch while the vehicle is in Park. Related: More ...

DETROIT (AP) — General Motors is adding over 132,000 heavy-duty pickups in the U.S. to a previous recall for tailgate release switches that can short circuit and open the gates while the trucks are in ...