Marshawn Lynch Ghostrides Monster Truck ... Smashes Puny Jeep (VIDEO)

Marshawn Lynch went BEAST MODE on a monster truck -- ghostriding the massive vehicle and then using it to CRUSH a Jeep.

The ex-NFL star got all smashy-smashy with the guys from Discovery Channel's "Diesel Brothers" ... and he LOVED IT.

They even busted out some donuts ... with the crushed Jeep still under the truck.