1985 BRAKE SYSTEM USAGE CHART C TRUCK N VEHICLE BRAKE SPECIFICATIONS MODEL WHEEL REAR GVW BRAKE MERCHANDISING NO BASE WHEELS RATING RPO RPO 010703 117 5 SINGLE 4900 JB1 GAS 010703 117 5 SINGLE 5600 JB3 GAS J50 010703 117 5 SINGLE 5600 JD3 DIESEL 010703 117 5 SINGLE 6100 JB5 GAS J55 010703 117 5 SINGLE 6250 JD5 DIE EL J55 010903 131 5 SINGLE 4900 JB1 GAS 010903 131 5 SINGLE 5600 JB3 GAS J50 010903 131 5 SINGLE 5600 JD3 DIESEL 010903 131 5 SINGLE 6100 JB5 GAS J55 010903 131 5 SINGLE 6250 JD5 DIESEL J55 010906 129 5 SINGLE 6800 JE5 GAS 010906 129 5 SINGLE 7000 JD5 DIE EL 020903 131 5 SINGLE 7200 JB6 GAS 020903 131 5 SINGLE 7200 JD6 DIE EL 020903 131 5 SINGLE 8600 JEI7 GAS J55 020903 4 131 5 SINGLE 8500 JD7 DIE EL J55 020903 131 5 SINGLE 3331 KG JD7 DIESEL EXPORT J55 020905 129 5 SINGLE BS00 JB7 GAS 020906 129 5 SINGLE 8600 JD7 DIE EL 020943 164 5 SINGLE 8600 JD7 DIESEL 030903 131 5 SINGLE 9000 JBB GAS DIESEL 030903 131 5 DUAL 10 500 JB8 GAS DIESEL 031003 135 5 SINGLE 9000 JEIB GAS DIESEL 031003 135 5 DUAL 10 500 JEIB GAS DIESEL 031403 159 5 SINGLE 9000 JB8 GAS DIESEL 031403 159 5 DUAL 10 500 JB8 GAS DIESEL 030943 164 5 SINGLE 9000 JBB GAS DIESEL 030943 164 5 DUAL 10 500 JEI8 GAS DIESEL E r 1990 GENERAL MOTORS SERVICE PARTS 0PERAT 0NS LTTRUCK 52R T REV 9 90 2s1 4 999