BRAKES 1986 BRAKE SYSTEM USAGE CHART C TRUCK VEHICLE BRAKE SPECIFICATIONS MODEL WHEEL REAR GVW BRAKE NO BASE WHEELS RATING RPO 010703 117 5 SINGLE 4900 JB1 GAS 010703 117 5 SINGLE 5600 JB3 GAS 010703 117 5 SINGLE 5600 JD3 DIESEL 010703 117 5 SINGLE 6100 JB5 GAS 010703 117 5 SINGLE 6250 JD5 DIESEL 010903 131 5 SINGLE 4900 JB1 GAS 010903 131 5 SINGLE 5600 JB3 GAS 010903 131 5 SINGLE 5600 JD3 DIESEL 010903 131 5 SINGLE 6100 JB5 GAS 010903 131 5 SINGLE 6250 JD5 DIESEL 010906 129 5 SINGLE 6800 JB5 GAS 010906 129 5 SINGLE 7000 JD5 DIESEL 020903 131 5 SINGLE 7200 JB6 GAS 020903 131 5 SINGLE 7200 JD6 DIESEL 020903 131 5 SINGLE 8600 JB7 GAS 020903 131 5 SINGLE 8600 JD7 DIESEL 020906 129 5 SINGLE 8600 JB7 GAS 020906 129 5 SINGLE 8600 JD7 DIESEL 020943 164 5 SINGLE 8600 JD7 DIESEL 020943 164 5 SINGLE 8600 JB7 GAS 030903 131 5 SINGLE 9000 JB8 GAS DIESEL A 030903 131 5 DUAL 10 500 JB8 GAS DIESEL 031003 135 5 SINGLE 9000 JB8 GAS DIESEL 031003 135 5 DUAL 10 500 JB8 GAS DIESEL A 031403 159 5 SINGLE 9000 JB8 GAS DIESEL 4 031403 159 5 DUAL 10 500 JB8 GAS DIESEL 030943 164 5 SINGLE 9000 JB8 GAS DIESEL 030943 164 5 DUAL 10 500 JB8 GAS DIESEL J 1988 GENERAL MOTORS SERVICE PARTS OPERATIONS LT TRUCK 52R REV 1 88 BRAKE SYSTEM 3 4 000 GROUP