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

The two brands have worked together for decades, but they couldn't reach an agreement to extend their longstanding licensing deal.

A defect that has impacted GM's full-size trucks and SUVs could potentially cause issues on 90,000 RWD sedans and coupes. Excessive wear within the transmission’s valve body can lead to a fluid leak.

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

Hooray there is a 10-speed transmission wheel lock-up fix in the form of a new Gen 3 valve body and it is shipping to dealers now. 10-Speed Transmission Wheel Lock-Up Recall Nightmare If you missed ...

More litigation is targeting GM over allegedly defective 8L45E and 8L90 eight-speed automatic transmissions, this time on behalf of 13 consumers who claim The General knew about the transmission ...