BRAKES 1975 P TRUCK STEP VAN VALUE VAN BRAKE SYSTEM USAGE TP254 VEHICLE SPECIFICATIONS BRAKE SPECIFICATIONS OPTIONALLY AVAILABLE J MODEL REAR RPO J55 H D ND W B GVWR WHEELS BASE POWER BRAKES Z1 P20842 6800 Single JB6 JB7 7500 Single JB7 8000 Single JB7 P2l042 133 6800 Single JBB JB7 I33 7500 Single JB7 133 8000 Single JB7 P30842 l25 7600 Single JB7 JB8 l25 8200 Single JB7 JB8 l25 9000 Single JB8 l25 9000 Dual JB8 I I25 10 000 Dual JB8 I25 12 000 Dual JB9 l25 14 000 Dual JB9 P31042 l33 7600 Single JB7 JB8 I l33 8200 Single JB7 JB8 l33 9000 Single JB8 l33 9000 Dual JB8 l33 10 000 Dual JB8 I33 12 000 Dual JB9 l33 14 000 Dual JB9 P3l442 I57 7600 Single JB7 JB8 I57 8200 Single JB7 JB8 I57 9000 Single JB8 I57 9000 Dual JB8 I57 I0 000 Dual JB8 J 157 IZ 000 Dual JB9 I57 I4 000 Dual JB9 Truck has H D Brakes as Sid equipment Na higher brake system available WAREHOUSlNG AND DISTRIBUTION DIVISION OF GENERAL MOTORS CORPORATION LT TRUCl 51 4 000 GROUP 4 12 c REV 2 83