I n GM06 0154 NOTE 3 7 50 RING GEAR NOTE 4 8 50 RING GEAR NOTE 5 8 75 RING GEAR NOTE 6 11 0 X 2 0 REAR BRAKE DRUM WEIGHT 23 K NOTE 7 COMPONENTS SERVICED I 3 1991 GENERAL MOTORS SERVICE PARTS OPERATIONS BUICI 44W I 5 000 GROUP I 6 14 A 6 91 QI 1 V 4