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 and find the next giveaway truck at a gas station: a pristine LBZ Duramax.

Heavy D, Diesel Dave and the Dieselsellerz crew scramble to salvage their Duramax giveaway after it goes up in flames.

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 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.

A client asks Heavy D and his crew to turn his beat-up work truck into an off-road mobile service station.

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.

The Dieselsellerz are pulling out all the stops to build a cool hybrid for their good friend and stunt driver Tanner Godfrey.

All hands are on deck as the Dieselsellerz finish their 6-wheel-drive F550 in time for SEMA.