1981 BRAKE SYSTEM USAGE CHART 1581 C TRUCK DIESEL ENGINE VEHICLE SPECIFICATIONS BRAKE SYSTEM SPECIHCATTONS OPI HVV BASE BRAKES DUTV BRAKES MODEL WHEEL REAR BRAKE MERCIMND BRAKE MERCHAND N0 BASE RPO RPO RPO RPO RPO C10703 117 5 5200 SINGLE JD3 J50 JD5 I J55 C10703 117 5 5600 SINGLE JD3 J50 JD5 J55 C10703 117 5 6000 SINGLE JD5 J55 010903 131 5 5200 SINGLE JD3 J50 JD5 J55 C10S03 131 5 5600 SINGLE JD3 J50 JD5 J55 C10903 131 5 6000 SINGLE JD5 J55 WAREHOUSING AND DISTRIBUTION DIVISION OF GENERAL MOTORS COHPOHATlON LT TRUCK 62A REV 1 M us s 4 000 GROUP