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!

A new client asks for the biggest build yet- a monster school bus capable of driving over sand and water. Redbeard discovers the Mello Yello racecar from Days of Thunder and the perfect buyer for it.

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.

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.

Major league pitcher Jacob deGrom asks them to revamp his OBS Ford, and the diesel guys convert a rare British Land Rover Defender from right hand drive to left hand drive for a client.

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!

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!