1981 BRAKE SYSTEM USAGE CHART 1981 P TRUCK GASOLINE ENGINE 42 MODEL BRAKE Y T M SPECIFICATIONS OPT HVV BASE BRAKES DUTV BRAKES MODEL WHEEL REAR BRAKE MERCHAND BRAKE MERCHAND N0 BASE WHEELS RPO RPO RPO RPO PZ084Z 125 0 6800 SINGLE J86 STD JB7 J55 P2084Z 125 0 7500 SINGLE JB7 J55 P2084Z 125 0 8000 SINGLE JB7 J55 PZ1042 133 0 6800 SINGLE J86 STD JB7 J 55 PZ1042 133 0 7500 SINGLE JB7 J55 PZ104Z 133 0 8000 SINGLE JB7 J55 P30842 125 0 7600 SINGLE JB7 STD JB8 J55 P3084Z 125 0 8200 SINGLE JB7 STD JB8 J55 V P3084Z 125 0 9000 SINGLE JB8 J55 F3084Z 125 0 9000 DUAL JB8 J55 1 30842 125 0 10000 DUAL JB8 J55 P3084Z 125 0 11500 DUAL JB8 J55 P3084Z 125 0 12000 DUAL JF9 H22 or HZ3 P3084Z 125 0 14000 DUAL JF9 H22 or HZ3 P3084Z 125 0 14500 DUAL JF9 H22 or HZ3 P31042 133 0 7600 SINGLE JB7 STD JB8 J55 P31042 133 0 8200 SINGLE JB7 STD JB8 J55 P31042 I 133 0 9000 SINGLE JB8 J55 P31042 133 0 9000 DUAL JB8 J55 P31042 133 0 10000 DUAL JB8 J55 P3104Z 133 0 11500 DUAL JB8 J55 P31042 133 0 12000 DUAL JF9 HZZ or HZ3 P31042 133 0 14000 DUAL JF9 H22 or HZ3 P31042 133 0 14500 DUAL JF9 H22 or HZ3 P3144Z 157 0 7600 SINGLE JB7 STD JB8 J55 P31442 157 0 8200 SINGLE JB7 STD JB8 J55 P31442 157 0 9000 SINGLE JB8 J55 P3144Z 157 0 9000 DUAL JB8 J55 P3144Z 157 0 10000 DUAL JB8 J55 P3144Z 157 0 11500 DUAL JB8 J55 P3144Z 157 0 12000 DUAL JF9 H22 or HZ3 P3144Z 157 0 14000 DUAL JF9 H22 or HZ3 1 31442 157 0 14500 DUAL JF9 H22 or HZ3 WAREHOUSING AND DISTRIBUTIOII DIVISION OF GENERAL MOTORS CORPORATION LT TRUCK 5ZA 4 000 GROUP ua s REV 1 84