ON SAT 1-25-03 EE WAS HELPING TO INSTALL A STABLIZER ARM ON A DOZIER. THIS IS VERY HEAVY AND TAKES FOUR MEN. WHILE DOING THIS HEAVY LIFT IS WHEN THE INJURY OCCURED BUT EE DID NOT KNOW IT AT TH E TIME AFTER A PERIOD OF MISTREATMENT, MRI WAS DONE THAT SHOWED THE DISK PROTRUSION. HE HAS BEEN INT HE CAR OF DR SINCE THAT TIME.