Heavy D takes a chance on a unique double Corvette; Muscle takes the lead on a Denali for their latest giveaway.

Heavy D bets the farm on a Diesel-swapped Chevy 210, but this rusty Rat Rod could run them off the road. Meanwhile, they're giving away a monstrous new TRX.

Auction day is finally here and the guys are selling 16 unbelievable builds in the biggest gamble of their careers.

Heavy D rolls the dice on a vintage 1951 International Diesel dozer with engine problems. Is he pushing his luck? Meanwhile, Redbeard announces their first-ever double giveaway to keep some cash flowing into the shop.

Work continues on the Diesel rat rod, but Heavy D's latest military build hits a snag.

Diesel Dave continues work on his epic modern-day Kodiak while making sure he doesn't break the bank. Sam the Mad Scientist then unveils "The Kraken" -- a diesel-powered monowheel vehicle that is unlike anything the guys have ever seen.

Heavy D surprises the mechanics with his latest build: a tank. He has big plans for the beast, but must first find a new engine and get it moving again. Meanwhile, Heavy D, Diesel Dave and the Muscle personally trick out their latest giveaway truck.

Heavy D enlists a unique semi-amphibious off-road military vehicle that gives Redbeard a sinking feeling. Meanwhile, time's up for the Diesel Bi-Wheel, and they're left questioning its big debut.

The Diesel Brothers overhaul and auction off 10 iconic diesel vehicles.

No one builds bigger or badder diesel trucks than Heavy D, Diesel Dave & the crew at Dieselsellerz. Their mega builds & awesome truck giveaways are the stuff of diesel legend. Follow the team at Dieselsellerz as they trick out trucks; working…

Mad Scientist Sam's wild creation, The Kraken, comes to life but Heavy D continues to be skeptical of the build's potential viral success. A high profile client wants to customize a Ram 3500, which puts Diesel Dave and The Muscle to the test.

Redbeard goes rogue taking on an iconic diesel vehicle build of his own. Will his Hail Mary cost them a Queen's Ransom? Meanwhile it's time to see if the Gama Goat will sink or swim -- literally.

For the Dieselsellerz giveaway, Thunder vs. Lightning, two lifted F450s compete and the winner decides which one to take home; the guys continue turning a busted '69 Chevy C10 into a diesel low rider for a millionaire client.

Heavy D continues trying to salvage a wrecked overland camper from Europe, hoping for a big payday; Sam designs a hub-centric, diesel-powered bicycle with spare and salvaged parts from the shop.

The Diesel Brothers give a truck overhaul to a local dad who was harassed at a campsite when his F350 broke down. And the guys put together the shop's first-ever diesel Motorcycle, with a Magneto!

Diesel Dave picks his first give-away truck and dreams big attempting to build the 2020 version of the Kodiak. Todd LeDuc challenges the guys to a desert race and flips the script by picking The Muscle to be on his team.

A client asks Heavy D to turn a Ford F550 into a tough 6x6 farm truck that's also a showcase for biodiesel fuel; the guys make their dreams come true when they build the first diesel Monster Jam truck.

Major league pitcher Jacob deGrom needs his OBS Ford revamped. The guys convert a British Land Rover defender from right hand drive to left hand drive.

The guys get fired up about an overlanding rig, but it turns into a totaled smoke show. Can Heavy D save the day or is the auction going up in flames?

A client asks Heavy D & his crew to turn his beat-up work truck into an off-road mobile service station. Heavy D searches for the next giveaway truck, & Diesel Dave finds the Holy Grail: a 2nd generation, quad cab Dodge with a 12-valve diesel engine.

A new client asks for the biggest build yet: a monster school bus capable of driving over sand and water. Later, the Muscle brings in his own client build for a gym buddy, a Raptor-style F250.

A client asks Heavy D and his crew to turn a Ford F550 into a tough 6x6 farm truck that's also a rolling showcase for biodiesel fuel; Heavy D uses the power of physics to drive a truck on just two wheels.

In the diesel world, no one has more fun or builds bigger, badder trucks than Dieselsellerz. They turn a rusty 1948 Willy’s Jeep into a diesel-drinking monster for a new client & find the next giveaway truck at a gas station: a pristine LBZ Duramax.

The guys build an amphibious Sisu Nasu for the local sheriff; the next work truck giveaway: a Dodge 5500 with all the bells and whistles.

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 Dieselsellerz are pulling out all the stops to completely rebuild the Super Six for a client; Heavy D faces a challenge when his neighbor asks him to turn a 5-ton military truck into a snow-demolishing plow.

Heavy D comes up with a plan to rid the world of minivans by making and selling a mini version of Dieselsellerz’ legendary MegaRam. The F650 giveaway reveal will stretch the power of diesel to the limit when the F650 tries to pull an entire train.

The Diesel Brothers salute the military with an action-packed night of insane stunts and it's all LIVE! Heavy D hopes to make history by jumping the Brodozer over a flying airplane, while Diesel Dave, the Muscle, and others attempt their own stunts.

The Dieselsellerz are pulling out all the stops to build a cool hybrid for their good friend and stunt driver Tanner Godfrey. Meanwhile, time is running out for Heavy D to find a show stopping build for the upcoming SEMA trade show in Vegas.

When The Muscle buys a battered El Camino to fix and flip, it might be too big a job for even the Dieselsellerz team to transform it. Heavy D and Diesel Dave find their next giveaway truck- a Ford F650 that’s a perfect platform for pure power.

Last year the Dieselsellerz put their insane builds on the map when they debuted their legendary MegaRam at the SEMA trade show in Vegas. With less than two weeks to go, it’s all hands on deck to finish a 6-wheel drive F550 in time for the big show.

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.

The Dieselsellerz are pulling out all the stops to build a new giveaway: a Nissan Titan with a near-zero emission Cummins engine; Heavy D fulfills his lifelong dream to drive a truck in Monster Jam.

Heavy D adds a second truck to their latest giveaway and comes up with a stunt to promote it: a race across a lake on snowmobiles. Then, the guys head to Houston with giant diesel trucks and supplies to help Hurricane Harvey victims.

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.

The Dieselsellerz are cranking out their next giveaway: a quad cab Dodge with a 12-valve. When Black Rhino tools asks the guys for a show-stopping build for a trade show, they pull out all the stops- including importing a surprise from Sweden.