The Dieselsellerz build a cool hybrid for their stunt driver friend Tanner, and will Heavy D have time to find a mighty build for the upcoming SEMA trade show?

Last year the Dieselsellerz unveiled their majestic MegaRam at the SEMA trade show in Vegas. Now they're racing to finish a six-wheel drive F550 before the show.

Heavy D searches for the next giveaway truck, and Diesel Dave finds the Holy Grail: a second generation, quad cab Dodge with a 12-valve diesel engine.

When Black Rhino Tools request a show-stopping build for a trade show, the team pull out all the stops- including importing a surprise from Sweden.

When the frame on Heavy D's "quick flip" is unsalvageable, he turns it into the ultimate mud truck, and Chavis takes his custom race truck to a competition.

The Dieselsellerz crew race to finish their monster mud truck, and The Muscle rushes to get a buyer for the Denali he bought without Heavy D's permission.

Redbeard gets Heavy D to rework an old stretched six-door F650 with a camper - will it be a top expedition vehicle? The guys buy a Hummer H1 from a mystery mountain man.

The crew race to finish a six-door stretched F650 Expedition Camper for a big client. Heavy D shocks the guys with a diesel-powered experimental helicopter.

The Diesel Sellerz aim to turn a vintage fire truck into a tow truck that can carry big numbers. Plus, the legendary Chuck Norris needs a truck for his latest project.

The guys grab a vintage fire truck to convert into a tow truck to carry everyone in the shop. Plus, can Heavy D finish the endless Fail of the Year UTV build?

Heavy D builds a somersaulting truck for viral videos. Meanwhile, The Muscle takes over a flip from Heavy D and turns a Dodge Ram into a funky modern pop-up camper.

The guys race the clock for their SEMA build - a replica Ford Bronco made from an F350 and an Excursion. Heavy D aims to make a somersaulting truck a reality.

Heavy D finally finishes the "Fail of the Year" UTV. And gridiron comes to the garage when NFL legend Marshawn Lynch asks the guys to build him a Beastmode UTV.

The Dieselsellerz SEMA build hits a snag, and the guys rush to find a replacement. They decide to rebuild and give away their most iconic build - The Megaram.

Heavy D enters the crew in the Mint 400 Desert Race. With just one week until the race, can they fix up their completely untested race truck in time?

Heavy D fulfils his childhood dream of driving a truck in Monster Jam. And, the team pulls out all the stops in their next giveaway build - a sleek Nissan Titan.

The crew pulls out all the stops to completely rebuild the Super Six for a client. And Diesel Dave leaves the nest, with a special build of his own.

The crew pulls out all the stops on their crab-walking Super Six rebuild, complete with t-shirt cannon. Plus, Heavy D tackles a five-tonne military truck conversion.

The Sheriff asks for a new Search and Rescue vehicle so the guys build an amphibious Sisu Nasu. And, the team pull out all the stops for the work truck giveaway.

A big, new client wants the crew to transform a busted 1969 Chevy into a perfect Prolite rack truck. Heavy D tests it out at a local dirt track.

For the Dieselsellerz giveaway, two lifted F450s compete and the winner can take one home! The guys finish turning an old 69 Chevy C10 into a diesel low rider.

A big money investor has a challenge for the team involving a 1969 Chevy C10. Plus, the crew goes to Sturgis to see a one-of-a-kind diesel bike.

A client asks Heavy D and his crew to turn a Ford F550 into a tough 6x6 farm truck. Plus, Heavy D uses the power of physics to drive a truck on just two wheels.

No one has more fun or builds bigger, badder trucks than the crew at DieselSellerz. Their mega builds and awesome truck giveaways are the stuff of diesel legend.

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

The crew race to finish the monster school bus with a 40-foot drive train and 66-inch tyres. Redbeard discovers the Mello Yello race car from Days of Thunder.

Major league pitcher Jacob deGrom asks the crew to revamp his OBS Ford. And, they convert a rare British Land Rover Defender from right-hand to left-hand drive.

The guys convert a rare Land Rover Defender from right hand drive to left. Plus, Heavy D tries to get money for the shop by parting out a military plane de-icer.

The crew overhaul a truck for a local dad whose F350 broke down. And, they assemble the shop's first-ever diesel motorcycle, with a Magneto!

When the guys are challenged to a Tuff Truck, Sparks Motors rebuilds a wasp-infested old Jeep and the Goons rebuild a water-logged Blazer.

Heavy D and the crew transform a rundown Canadian logging truck into a maxed out, custom semi to transport their builds cross-country.

Heavy D adds a second truck to their latest giveaway, with a snowmobile race to promote it. And, the team is in Houston to help hurricane victims.

While the shop finishes the semi build, Heavy D moves ahead with his plan to attempt a death-defying stunt in the Brodozer.

Heavy D is commissioned to design and build a 1,000-gallon fuel truck and a diesel-powered helicopter bucket to spread fertiliser for a timber business in Oregon.

Heavy D builds two custom fertiliser spreaders and a custom fuel truck for a friend’s helicopter business in Oregon. Plus, he picks up a unique Swiss overland camper.

Heavy D continues trying to salvage a wrecked overland camper from Europe, hoping for a big payday. Meanwhile, Sam designs a hub-centric, diesel-powered bicycle.

Off-road racer RJ Anderson enlists Heavy D to trick out his Ford Raptor. Meanwhile, the guys challenge the Goons Garage and Welder Up to a Tuff Truck rematch.

The team continue converting their junkyard Bronco for the Tuff Truck rematch. Meanwhile, Heavy D customizes a brand new UTV for a world record attempt.

The team salute the military with an action-packed night of insane stunts. Heavy D hopes to make history by jumping the Brodozer over a flying airplane.

Heavy D's plan falls apart when he plans to turn a K5 Blazer into an off-road showpiece for a big client. Meanwhile, Sam builds a dangerous minibike.

The guys transform an old K5 Blazer and square body truck bed into a party on wheels. Plus, Diesel Dave convinces Heavy D to get his El Camino back on the road.

Heavy D powers up with his next SEMA build: a 6x6 with a custom full-track assembly. And, Diesel Dave adds the finishing touches to his dream El Camino.

Heavy D converts a Vietnam-era bridge boat into the world's only diesel-powered surf boat. Then, the guys head to California to track down a rare Excursion.

Heavy D continues to work on his ambitious diesel-powered boat conversion. Meanwhile, the race is on to be ready for the epic showdown against the Dirty 7.

Diesel Dave picks his first giveaway truck and dreams big, attempting to build the 2020 version of the Kodiak. Todd LeDuc challenges the guys to a desert race.

Diesel Dave continues work on his first giveaway truck - the epic modern day Kodiak. Sam the Mad Scientist unveils "The Kraken:" a diesel powered monowheel vehicle.

Sam's wild creation, The Kraken, comes to life but Heavy D is sceptical of the build's potential success. A high-profile client wants to customise a Ram 3500.

Heavy D surprises the crew with his latest build: a tank. Meanwhile, Heavy D, Diesel Dave and the Muscle personally trick out their latest giveaway truck.

Dave and Heavy D work on their tank build, but engine troubles put the project in jeopardy. Plus, the shop splits into teams for an epic build-off.

Diesel Dave and Heavy D continue to work on builds for their off-road race. Heavy D pulls out all the stops for his impressive AMC Eagle conversion.

In the world of diesel vehicles, Heavy D, Diesel Dave and their crew at DieselSellerz builds the biggest, baddest trucks around. They work hard - and play harder in the process!

In the world of diesel vehicles, Heavy D, Diesel Dave and their crew at DieselSellerz builds the biggest, baddest trucks around. They work hard - and play harder in the process!

In the world of diesel vehicles, Heavy D, Diesel Dave and their crew at DieselSellerz builds the biggest, baddest trucks around. They work hard - and play harder in the process!

Redbeard takes on a diesel 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.

Heavy D pushes his luck on a vintage 1951 International Diesel dozer with engine problems. Plus, Redbeard announces their first-ever double giveaway.

In the world of diesel vehicles, Heavy D, Diesel Dave and their crew at DieselSellerz builds the biggest, baddest trucks around. They work hard - and play harder in the process!

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.

Work continues on the Diesel rat rod, but Heavy D's latest military build hits a snag. Will the big rig be battle ready in time for the auction?

Heavy D takes a chance on a unique double Corvette while Muscle takes the lead on a Denali for their latest giveaway. Can they finish before the Diesel auction?

Auction day is finally here and the guys are selling 16 unbelievable builds in the biggest gamble of their careers. Will they crush their sales goals?