TPO6 317 63 6 177 BOLT FR T SUSP RE NF 7 039 I 91 93 P3 42 F66 6 332844 6 177 BOLT FRT SUSP RE NF 7 039 93 P3 52 62 6 332817 RPO DEFINITIONS FS3 AXLE FRONT I BEAM CONSTRUCTION 5000 LBS F66 SUSPENS ON HEAVY DUTY FRONT AIR JB7 BRAKE SYSTEM VACUUM POWER D SC DRUM JB8 BRAKE SYSTEM HYDRAUL C POWER D SC DRUM GAS DIESEL ENGINE ROTOR 12 5 X1 5 4 REAR BRAKE SHOE 13 X3 5 JB8 BRAKE SYSTEM HYDRAULIC POWER BISC DRUM JD7 BRAKE SYSTEM HYDRAUL C POWER DISC DRUM JF9 BRAKE SYSTEM HYDRAUL C POWER 4 WHEEL DISC I V LB4 ENGINE 4 3L 4 3Z V6 LL4 ENGINE 6 2L 6 2J D ESEL V8 I LO5 ENGINE 5 7L 5 7K V8 D G TAL FUEL INJECTION R04 WHEELS SINGLE REAR RO5 WHEELS DUAL REAR 9L6 SUSPENSION SYSTEM FRONT REAR LOW POSIT ON HEAVY DUTY 1992 GENERAL MOTORS SERVICE PARTS OPERATIONS LT TRUCK 53I 1 9 92 c 2s A A 6 000 GROUP