1978 PETERBILT PETERBILT - LATCHES/LOCKS/LINKAGES:DOORS:LATCH 1978 PETERBILT PETERBILT - SUSPENSION:REAR:SPRINGS:LEAF SPRING ASSEMBLY:HANGER/BRACKET 1978 PETERBILT PETERBILT - STEERING:WHEEL AND HANDLE BAR 1978 PETERBILT PETERBILT - VEHICLE SPEED CONTROL:LINKAGES