T IZ8 1979 BRAKE SYSTEM USAGE CHART 1979 C TRUCK GASOLINE ENGINE VEHICLE SPECIFICATIONS BRAKE SYSTEM SPEC1F1CATIONS I OPT HVY BASE BRAKES DUTY BRAKES WHEEL BRAKE MERCHAND BRAKE MERCHAND BASE RPO RPO RPO RPO 010703 117 5 4900 SINGLE JB1 STD 010703 117 5 5300 SINGLE JB3 J50 JB5 J55 C10703 117 5 5400 SINGLE JB3 J50 JB5 J55 010703 117 5 5600 SINGLE JB3 J50 JB5 J55 010703 117 5 6050 SINGLE JB5 J55 010703 117 5 6200 SINGLE JB5 J55 010903 131 5 4900 SINGLE JB1 STD 010930 131 5 5300 SINGLE JB3 J50 JB5 J55 010903 131 5 5400 SINGLE JB3 J50 JB5 J55 010903 131 5 5600 SINGLE JB3 J50 JB5 J55 010903 131 5 6050 SINGLE JB5 J55 010903 131 5 6200 SINGLE JB5 J55 C10906 129 5 6050 SINGLE JB5 STD 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 C20903 131 5 7100 SINGLE JB6 STD JB7 J55 I CZ0903 131 5 7500 SINGLE JB7 J55 020903 131 5 8200 SINGLE JB7 J55 C20906 129 5 7100 SINGLE JB6 STD JB7 J55 020906 129 5 7500 SINGLE JB7 J55 C20906 129 5 8200 SINGLE JB7 J55 020943 164 5 7500 SINGLE JB7 STD 020943 164 5 8200 SINGLE JB7 STD 030903 131 5 9600 SINGLE JB7 STD JB8 J55 030903 131 5 9000 SINGLE JB8 J55 030903 131 5 10000 DUAL JB8 J55 C31003 135 5 8600 SINGLE JB7 STD JB8 J56 031003 135 5 9000 SINGLE JBB J55 331003 135 5 9000 DUAL JB8 J55 C31003 135 5 10000 DUAL JBB J55 031403 159 5 8600 SINGLE JB7 STD JB8 J55 031403 159 5 9000 SINGLE JB8 J55 031403 159 5 9000 DUAL JB8 J55 031403 159 5 10000 DUAL JB8 J55 030943 164 5 9000 SINGLE JB8 STD 030943 164 5 9600 SINGLE JB8 STD 030943 164 5 10000 DUAL J BB STD WAREHOUSING AND DISTRIBUTION DIVISION OF GENERAL MOTORS CORPORATION LT TRUCK 52A 4 000 GROUP 4 2 s REV 1 84