A group of friends in Utah own and operate a business that specializes in all things diesel. These guys don't just sell parts for diesel trucks and jeeps, they also design and build some of the biggest, baddest, and most amazing diesel powered vehicles you will ever see. Watch as they create these awesome masterpieces of American craftsmanship and enjoy all the antics they get into while doing it. Written by Ryan Templin

When the frame on Heavy D's quick flip is unsalvageable, he decides to turn it into the ultimate mud truck. Chavis gets more than he bargained for when he's invited to bring his custom race truck to the Call Out Challenge truck competition.

Heavy D, Diesel Dave and the Dieselsellerz crew work on finish their epic monster mud truck for the giveaway; The Muscle scrambles to find a buyer for the flashy Denali he bought with Heavy D's permission.

Sick of the ridicule on social media, Heavy D decides to finally finish the Fail of the Year UTV. And the gridiron comes to the garage when NFL legend Marshawn Lynch asks the guys to build him a Beastmode UTV.

When Redbeard challenges Heavy D to repurpose some old inventory, Heavy decides to marry a stretched 6 door F650 with a camper to create the ultimate expedition vehicle. And the guys buy a Hummer H1 from a mysterious mountain man.

Heavy D, and Diesel Dave and the Dieselsellerz crew scramble to finish a six-door stretched F650 Expedition Camper for a big client; Heavy D shocks the team with his latest flip: a diesel-powered experimental helicopter.

The Diesel Sellerz pick up a vintage fire truck to transform into a tow truck that can carry everyone in the shop; Chuck Norris stops by, seeking a truck for his latest project.

Heavy D decides to test the physics abilities of the shop and build a somersaulting truck to use for viral videos. And The Muscle takes over a flip from Heavy D and turns a Dodge Ram into a badass modern pop-up camper.

The Diesel Brothers are up against the clock for their SEMA build- a replica Ford Bronco made from an F350 and an Excursion. Heavy D brings in physics help to make his dream of a somersaulting truck come true.

A group of friends in Utah own and operate a business that specializes in all things diesel. These guys don't just sell parts for diesel trucks and jeeps, they also design and build some of the biggest, baddest, and most amazing diesel powered vehicles you will ever see. Watch as they create these awesome masterpieces of American craftsmanship and enjoy all the antics they get into while doing it. Written by Ryan Templin

A group of friends in Utah own and operate a business that specializes in all things diesel. These guys don't just sell parts for diesel trucks and jeeps, they also design and build some of the biggest, baddest, and most amazing diesel powered vehicles you will ever see. Watch as they create these awesome masterpieces of American craftsmanship and enjoy all the antics they get into while doing it. Written by Ryan Templin

A group of friends in Utah own and operate a business that specializes in all things diesel. These guys don't just sell parts for diesel trucks and jeeps, they also design and build some of the biggest, baddest, and most amazing diesel powered vehicles you will ever see. Watch as they create these awesome masterpieces of American craftsmanship and enjoy all the antics they get into while doing it. Written by Ryan Templin