VIN Prefixes Available
Sierra 1500
1GTEC14ZNE50   1GTDC14KNZ50   1GTDC14KNZ51   1GTDC14KNZ52   1GTDC14KNZ53   1GTDC14KNZ54   1GTDC14KNZ55   1GTEK14KNZ50   1GTEC14HNE50  
Topkick
1GDM7H1JNJ50   1GDM7H1JNJ51  
Sonoma
1GTDT19ZN250  
Suburban
1GKGK26KNJ70  
Sierra
1GDJC34KNE50   1GDJC34KNE51   1GDJC34KNE52   1GDJC34KNE53   1GDJC34KNE54   1GDJC34KNE55   1GDJC34KNE56   1GDJC34KNE57