0000 PETERBILT PETERBILT - FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM 0000 PETERBILT PETERBILT - SUSPENSION:REAR:SPRINGS:LEAF SPRING ASSEMBLY:SHACKLE 0000 PETERBILT PETERBILT - TRAILER HITCHES:FIFTH WHEEL ASSEMBLY 0000 PETERBILT PETERBILT - SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE