Aaron Kaufman sets his sights on an a '71 International Scout to turn it into a street legal Ultra 4 race car for the legendary King of Hammers. Everything about this is new. Hopefully these firsts won't be fails or he'll never make it to King of Hammers.

Aaron Kaufman and his team of builders are on the mad dash to get the International Scout ready in time for King of the Hammers. But problem after problem, from redoing the fenders, to leaks, and the car not starting, throws major wrenches into the plan.

Aaron Kaufman and his team of builders barely make it to King of the Hammers in California, where they will put their '71 International Scout to the ultimate test of rock and desert racing. But can Kaufman's Scout be able to take on the pros?

Aaron Kaufman takes on a new challenge to build a Semi-Race Truck. He brings on experts in the field of Semi-Truck racing, Bob Ball and his son Justin to bring the horsepower to the maximum.

The clock is ticking as Aaron Kaufman and his Arclight builders struggle to finish their semi truck in time for race day at Pike's Peak International raceway. Tempers flare and things go wrong. Does this crew have what it takes to make it to the start?

Aaron Kaufman is back and he's the boss. Redefining the custom car building space, he's pushing his design abilities to the limits and focusing on vehicle builds driven by passion. Taking on concepts and builds he's always dreamed of, Aaron will extend his skills in spaces he's never worked in before and with different types of vehicles in SHIFTING GEARS WITH AARON KAUFMAN.