
On a recent weekend at the Pocono Raceway, fans were treated to quite the sight when a massive pickup truck toting the American flag led the ceremonial laps at the Pennsylvania 400.
The pickup in question is named āJack,ā and itās the monstrous creation of Mack Trucksā Customer Adaptation Center.
Given the nickname of Mack Trucks co-founder, John M. Mack, the custom-built, all-wheel drive, mega crew cab pickup is based on a Mack Granite model and is powered by a 13-liter Mack MP8 engine providing a huge 800 horsepower and 2,800 lb.-ft. of torque.

āJack is not only a celebration of our rich history, but also a demonstration of the high level of customization weāre capable of at our Customer Adaptation Center,ā said John Walsh, Mack vice president of global marketing and brand management.
The CAC is located inside Mackās Lehigh Valley Operations assembly plant in Macungie, Pennsylvania, and customizes Mack trucks for customers whose needs go beyond typical factory options like adding extra brightwork for a custom long-haul sleeper or installing an all-wheel drive system for a municipal snow plow.
Jack rolled off the assembly line Oct. 27, 2015, the 151st birthday of Jack Mack, according to a Mack Trucks news release. The chassis was then moved to the CAC to receive its modifications and custom fabrication work.
The following are among Jackās unique features:
- Custom-fabricated mega crew cab body and pickup bed
- 46-inch tires mounted on custom wheels
- All-wheel drive
- Custom 8-inch dual exhaust
- Back-up and side-view cameras
- Touchscreen infotainment system
- 3D-printed āJackā name plates modeled on founder Jack Mackās signature
- 16,000 lb. winch