T133 1980 BRAKE SYSTEM USAGE CHART C0n t i I 1980 C TRUCK IGASOLINE ENGINE I VEHICLE SPECIFICATIONS BRAKE SYSTEM SPECIFICATIONS OPT HVY I BASE BRAKES DUTY BRAKES I MODEL WHEEL GVW BRAKE MERCHAND BRAKE MERCHAND I NO BASE RATING RPO RPO RPO RPO I C10703 117 5 4900 SINGLE JB1 STD I 010703 117 5 5300 SINGLE JB3 J50 JB5 J55 I 010703 117 5 5400 SINGLE JB3 J50 JB5 J55 I C10703 117 5 5600 SINGLE JB3 J50 JB5 J55 I C10703 117 5 6000 SINGLE JB5 J55 010703 117 5 6050 SINGLE JB5 J55 010703 117 5 6200 SINGLE JB5 J55 I 010903 131 5 4900 SINGLE JB1 STD I C10903 131 5 5300 SINGLE JB3 J50 JB5 J55 C10903 131 5 5400 SINGLE JE3 J50 JB5 J55 C10903 131 5 5600 SINGLE JB3 J50 JB5 J55 C10903 131 5 6000 SINGLE JB5 J55 010903 131 5 6050 SINGLE JB5 J55 010903 131 5 6200 SINGLE JB5 I J55 I 010906 129 5 6400 SINGLE JB5 STD 010906 129 5 6800 SINGLE JB5 STD C10906 129 5 7000 SINGLE JB5 STD 020903 131 5 6400 SINGLE JB6 STD JB7 J55 020803 131 5 7100 SINGLE JB6 STD JB7 J55 C20903 131 5 7500 SINGLE JB7 J55 020903 131 5 8600 SINGLE JB7 J55 020906 129 5 7100 SINGLE JB6 STD JB7 J55 020906 129 5 7500 SINGLE JB7 J55 C20906 129 5 8600 SINGLE JB7 J55 I SME JB7 5 Sw jj C30903 131 5 9000 SINGLE JBB STD 030903 131 5 10000 DUAL JB8 J55 031003 135 5 9000 SINGLE JBS STD I C31003 135 5 9000 DUAL JEB STD 031003 135 5 10000 DUAL JBB STD C31403 159 5 9000 SINGLE JB8 STD 031403 159 5 9000 DUAL J B8 STD 031403 159 5 10000 DUAL JB8 STD I 030943 164 5 9000 SINGLE JB8 STD 030843 164 5 9600 SINGLE JBB STD C30943 164 5 10000 DUAL JB8 STD GENERAL MOTORS SERVICE PARTS 0PERATIONS LT TRUCK 52A REV 2 87 BRAKE SYSTEM 7 4 OOO GROUP