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Biggest Build Yet? Diesel Brothers Take on Monster Project in Season 4 Premiere

“Extra” has an exclusive sneak peek from the “Diesel Brothers” Season 4 premiere!

It looks like Heavy D, Diesel Dave and the crew are taking on their biggest project yet… a monster school bus!

The bus, which features a 40-foot drive train and 66-inch tires, will transport event-goers to an island in the middle of the Great Salt Lake in Utah.

Watch the video for a first look at the build!

“Diesel Brothers” returns to Discovery on Monday, July 30, at 10 p.m. as part of Motor Mondays.

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