1 983 BRAKE SYSTEM USAGE CHART Y A P TRUCK 32 MODEL VEHICLE SPECIFICATIONS BRAKE SYSTEM SPECIFICATIONS OFT HVY BASE BRAKES DUTY BRAKES MODEL WHEEL GVW REAR CHAND BRAKE MERCHAND NO BASE RATING WHEELS RPO RPO RPO P30832 125 0 10500 DUAL JB8 STD P30B32 125 0 11000 DUAL JB8 STD P30S32 125 0 11800 DUAL JB8 STD F30B32 125 0 12300 DUAL JB8 STD P31132 137 0 10500 DUAL JBS STD P31132 137 0 11000 DUAL JSS STD I V 21 22 127 9 H20 DUAL V JSS STD V P31132 137 0 12300 DUAL JB8 STD P31432 158 5 10500 DUAL JB8 STD P31432 158 5 11000 DUAL JB8 STD P31432 158 5 11800 DUAL JB8 STD P31432 158 5 12300 DUAL JB8 STD P31432 158 5 14500 DUAL JF9 HF7 HF8 or HKS Paws 17s o 14500 DUAL n s sm K I I ENERAL MOTORS SERVICE PARTS OPERATIONS LT TRUCK42 3 4 OOO GROUP BRAKE SYSTEM 30 REV 2 87 I