1968 GMC K25/K2500 Suburban equipped with 6.5L V8 Gas OHV, 5.7L V6 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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Rockwell T221
1968 GMC K25/K2500 Suburban equipped with 6.5L V8 Gas OHV, 5.7L V6 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
Rockwell T221