When HPP teamed with GM Performance Parts (GMPP) and Classic Restorations to mate the new THM 4L85-E SuperMatic transmission to a built-to-the-hilt SD-455, we wanted to fully document the process.

Automatic transmissions have been with us for a long, long time. In fact, the basics can be found in the Model T Ford. At the heart of an automatic transmission are the planetary gearsets. As gears go ...

Subaru has issued a recall for some 198,300 vehicles due to a programming error with its transmission control unit. Related: More Subaru News Affected vehicles ...

RIYADH — The Ministry of Commerce announced the recall of 489 Nissan Patrol vehicles, model year 2025. The recall was attributed to a defect in the transmission control unit programming that may cause ...

Subaru of America, Inc. (Subaru) is recalling certain 2020-2021 Outback and Legacy vehicles. A programming error in the Transmission Control Unit (TCU) may allow the clutch to engage before the drive ...