Ford had to make upgrades to the 2021 F-150 Raptor and the assembly line to accommodate the new 37-inch, specially-designed BFGoodrich all-terrain T/A K02 tires. On the Raptor, "this includes a larger rod for the front shocks, a different spring perch location for the front suspension, unique rear shocks and bump stops. modifications to the frame to fit the larger spare tire, a new spare tire mount, and a relocated trailer hitch"
For the Dearborn Truck Plant assembly line, it took them 15 months to find a solution. According to the project manager “Every single station, every single piece of equipment. We’d run a 2020 Raptor [through the factory] with foam blocks on top to simulate the height. Constant digital reviews with the manufacturing team. They took every down week in the summer and over Christmas trying to change the cycle line to make provisions for what was coming. In the end, we found a really clever way to execute it.”