1966 GMC 3500 equipped with 5.7L V6 Gas OHV, 5.0L V6 Gas OHV, 4.8L L6 Gas OHV, 4.6L V8 Gas OHV, 4.1L L6 Gas OHV
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17/32 In. (13.7 mm) Steel Cup As Req Package Quantity: 10 Dorman AutoGrade Boxed
1966 GMC 3500 equipped with 5.7L V6 Gas OHV, 5.0L V6 Gas OHV, 4.8L L6 Gas OHV, 4.6L V8 Gas OHV, 4.1L L6 Gas OHV
17/32 In. (13.7 mm) Steel Cup As Req Package Quantity: 10 Dorman AutoGrade Boxed