Heavy D's plan falls apart when he plans to turn a Cummins-swapped K5 Blazer into a one of a kind-off road showpiece with a matching trailer for a big client. Sam builds maybe the most dangerous mini bike the world has ever seen.

The Diesel Brothers complete their transformation on an old K5 Blazer and square body truck bed into the ultimate diesel-powered party on wheels. Meanwhile, Diesel Dave convinces Heavy D to give his El Camino what she needs to get back on the road.

Heavy D puts the petal to the metal on his next SEMA build: a 6x6 with a custom full-track assembly that can handle any terrain in style. Meanwhile, Diesel Dave adds the finishing touches to his dream El Camino before revealing it at Monster Jam.