ATTEMPTING TO CHANGE A RAM JACK ON A RAM CAR, THE JACK EYELET WOULD NOT LINE UP WITH THE MACHINE FRAME. HE WAS USING A 30"" CRIB BLOCK TO PUSH THE JACK STINGER DOWNWARD. WHEN REPOSITIONING THE CRIB BLOCK, HE LOST HIS GRIP ALLOWING THE BLOCK TO FALL CATCHING HIS FINGER BETWEEN THE CAR BED FRAME AND THE BLOCK.