1990 BRAKE SYSTEM USAGE CHART R TRUCK 1 VEHICLE BRAKE SPECIFICATIONS MODEL WHEEL REAR GVW BRAKE MERCHANDISING NO BASE WHEELS RATING RPO RPO R10906 129 5 SINGLE 6100 6800 JB5 GAS R10906 129 5 SINGLE 6400 7000 JD5 DIE EL 9220906 129 5 SINGLE 8600 JB7 GAS R20906 129 5 SINGLE 8600 JD7 DIESELE R30943 164 5 SINGLE 9000 9600 JBB GAS DI SEL R30943 164 5 DUAL 10 000 JBB GAS DIESEL 10 500 1990 91 BRAKE SYSTEM USAGE CHART V TRUCK VEHICLE BRAKE SPECIFICATIONS MODEL WHEEL HEAR GVW BRAKE MEHCHANDISING NO BASE WH EELS RATING HP0 RPO V10516 106 5 SINGLE 6100 JB5 GAS V10516 106 5 SINGLE 6250 JD5 DIE EL V10906 129 5 SINGLE 6250 7000 JB5 GAS V10906 129 5 SINGLE 6800 7300 JD5 DIE EL V20906 129 5 SINGLE S600 JB7 GAS V20906 129 5 SINGLE 8600 JD7 DIESEL V30943 164 5 SINGLE 9200 JBB GAS DIESEL 6 V30943 164 5 DUAL 9200 JBS GAS DIESEL 10 000 t T 1990 GENERAL MOTORS SERVICE PARTS 0PERATION LTTRUCK 52R 1 1 4 999 use REV 9 90