After more than two decades working together, General Motors and Allison Transmission are officially splitting up.

Next year, heavy-duty GM trucks will lose their Allison badges, even though the transmissions themselves won't change.

GM is ending its long tradition of Allison transmissions in its HD pickups, but the Silverado MD still features a true ...

Allison Transmission has a new lubricant spec for its automatic transmissions, and Petro-Canada Lubricants is the first oil company to meet it. The new DuraDrive HD Synthetic 668 will be the factory ...

Prognostics monitor oil level, oil life, filter life, and transmission health to determine change intervals and alert operators when service is due In just a few months (October), Allison Transmission ...