T135 1980 BRAKE SYSTEM USAGE CHART Con I 1580 G TRUCK GASOLINE ENGINE VEHICLE SPECIHCATIONS BRAKE SYSTEM SPECIFICATIONS BASE BRAKES DUTY BRAKES MODEL WHEEL BRAKE MERCHAND BRAKE MERCHAND N0 BASE RPO RPO RPO RPO G11005 110 0 4900 SINGLE JB1 STD JB3IJB5 J50 J55 611005 110 0 5400 SINGLE JB3 J50 JB5 J55 611005 110 0 5600 SINGLE JB3 J50 JB5 J55 611005 110 0 6000 SINGLE JB5 J55 611305 125 0 4900 SINGLE JB1 STD JB3IJB5 J50lJ55 611305 125 0 5400 SINGLE JB3 J50 JB5 J55 611305 125 0 5600 SINGLE JB3 J50 JB5 J55 611305 125 0 6000 SINGLE JB5 J55 611006 110 0 5600 SINGLE JB3 STD JB5 J55 611006 I10 0 6000 SINGLE JB5 J55 611306 5600 SINGLE JB3 STD JB5 J55 611306 6000 SINGLE JB5 J55 lI1El ww SINGLE M 223 GSM EEE JB5 Sw jj 621006 IMI 6600 S L JB5 I l Hl S L M Sm K1 G31005 110 0 6600 SINGLE JB5 STD JB7 J55 631005 110 0 7100 SINGLE JB5 STD JB7 J55 631005 110 0 7400 SINGLE JB5 STD 631005 110 0 7900 SINGLE JB7 J55 V 631305 125 0 6600 SINGLE JB5 STD JB7 J55 631305 125 0 7100 SINGLE JB5 STD JB7 J55 631305 125 0 7400 S N6LE JB5 STD JB7 J55 631305 125 0 7900 SINGLE JB7 J55 631305 125 0 8600 SINGLE JB7 J55 631306 125 0 6600 SIN6LE JB5 STD JB7 J55 631306 125 0 7100 SINGLE JB5 STD JB7 J55 631306 125 0 7400 SINGLE JB5 STD JB7 J55 631306 125 0 7900 SINGLE JB7 J55 631306 125 0 8600 SINGLE JB7 J55 631303 125 0 7400 SINGLE JB7 STD 631303 125 0 8600 SINGLE JB7 STD 631303 125 0 8900 DUAL JB8 R05 631303 125 0 10000 DUAL JBB STD 631603 146 0 8900 DUAL JBB STD 631603 146 0 10000 DUAL JBB STD 125 0 8600 SINGLE JB7 STD 125 0 8900 DUAL JBS R05 125 0 10000 DUAL JB8 R05 E IZ HlIE EIl AL J WAREHOUSING AND DISTRIBUTION DIVISION OF GENERAL MOTORS CORPORATION LT TRUCI 52A REV 1 84 4 9 s 4 000 GROUP