“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.