CONTRACT TRUCKER WAS LOADED COMING OFF THE HANNCO ENTERGY JOB EMEELEN WHEN HE STATED THAT THE REAR END OF THE COAL TRUCK STARTED HOPPING IN THE LOSE GR4AVEL AND THE TRANSMISSION WENT OUT OF GE AR AND WHEN HE HIT THE BRAKES THE TRUCK STARTED SLIDING SO THE DRIVER JUMPED OUT, THE TRUCK WENT THROUGH DITCH HIT COBBARD AND LANDED ON OTHER SIDE OF ROAD.