EE SAID HE WAS DRIVING PICKUP AROUND CORNER TO GET SAMPLE WHEN HE MET EE WHO WAS DRIVING A 769 HAUL TRUCK. HE SAID HE STOPPED BUT THE AHUL T4UCK DID NOT. THE HAUL TRUCK PUSHED THE PICKUP BACKW ARD APP 50'. WHEN THE TRUCK STOPPED, THE RIGHT FRONT WHEEL OF THE HAUL TRUCK HAD CAVED INT HE DRIVERS DOOR OF THE PICK UP.