1981 BRAKE SYSTEM USAGE CHART I 981 P TRUCK GASOLINE ENGINE 32 MODEL VEHICLE SPECIFICATION BRAKE SVSTE F W I OFT HVY BASE BRAKES DUTY BRAKES MODE WHEEL REAR BRAKE MERCHAND BRAKE MEGHAND NO BASE WHEEl S RPO RPO RPO RPO P30832 125 0 10500 DUAL JB8 STD P30832 125 0 1 1000 DUAL JB8 STD P30832 125 0 1 1800 DUAL JB8 STD P30832 125 0 12300 DUAL JB8 STD P30832 125 0 12500 DUAL JB8 STD P31132 137 0 10500 DUAL JB8 STD P31132 137 0 11000 DUAL JB8 STD P31132 137 0 11800 DUAL JB8 STD P31132 137 0 12300 DUAL JB8 STD P31132 137 0 12500 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 12500 DUAL JB8 STD P31432 158 5 14500 DUAL JB8 HF7 or HF8 P 178 0 EEZ M M Eillj V WAREHOUSING AND DISTRIBUTION DIVISION OF GENERAL MOTORS COHPORATl0N LT TRUCK 52A REV 1 84 417 4 000 GROUP