Come 2014, Tremor was marketed as an off-road package for the F-150. The Tremor featured a twin-turbocharged 3.5-liter EcoBoost V6 engine and a rear-locking differential, but it was discontinued the following year.
Since then, the Tremor package has made fleeting appearances in the latest generation of F-150 trucks and was added as a trim level for the 2022 model year. In fact, a Ford F-150 Tremor that left the assembly line in Ford’s Dearborn, Michigan plant was the 40 millionth F-150 ever produced!