1968 GMC C35/C3500 Pickup equipped with 6.5L V8 Gas OHV, 5.3L V8 Gas OHV, 5.0L V8 Gas OHV, 5.0L V6 Gas OHV, 4.8L L6 Gas OHV, 4.1L L6 Gas OHV
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Radiator Cap/Cooling System Tester Adapter System adapter on tester
1968 GMC C35/C3500 Pickup equipped with 6.5L V8 Gas OHV, 5.3L V8 Gas OHV, 5.0L V8 Gas OHV, 5.0L V6 Gas OHV, 4.8L L6 Gas OHV, 4.1L L6 Gas OHV
Radiator Cap/Cooling System Tester Adapter System adapter on tester