VIN Prefixes Available
Topkick
1GDM7H1JTJ50   1GDL7H1JTJ50  
Jimmy
1GKCS18WTK50   1GKCS18WTK51   1GKDT13WT250   1GKDT13WT251   1GKDT13WT252   1GKDT13WT253   1GKDT13WT254   1GKDT13WT255   1GKDT13WT256   1GKDT13WT257   1GKDT13WT258   1GKDT13WT259   1GKDT13WT2510   1GKDT13WT2511   1GKDT13WT2512   1GKDT13WT2513   1GKDT13WT2514   1GKDT13WT2515  
Cutaway Van
1GDJG31KTF80   1GDHG31KTF50  
Suburban
1GKGK26JTJ70   1GKGK26JTJ71   1GKFK16RTJ70   1GKFK16RTJ71   1GKFK16RTJ72   1GKFK16RTJ73   1GKFK16RTJ74   1GKFK16RTJ75   1GKFK16RTJ76   1GKFK16RTJ77   1GKFK16RTJ78   1GKFK16RTJ79   1GKFK16RTJ710   3GKGK26JTG50  
Sierra
1GTGC24RTE50   1GDJC34RTE50   1GDJC34RTE51   1GDJC34RTE52   1GDJC34RTE53   1GDKC34JTJ50   2GDEC19RT150  
Yukon
3GKEK18RTG50   3GKEK18RTG51   3GKEK18RTG52   1GKEC13RTJ70   1GKEC13RTJ71   1GKEC13RTJ72   1GKEC13RTJ73   1GKEC13RTJ74   1GKEC13RTJ75   1GKEC13RTJ76   1GKEC13RTJ77   1GKEC13RTJ78  
4000
J8DC4B1KT700  
Safari
1GKDM19WTB50   1GKDM19WTB51   1GKDM19WTB52   1GKDM19WTB53  
Sonoma
1GTCS14XTK50  
Sierra 1500
1GTEK14MTZ50   2GTEC19WT150   2GTEC19WT151   2GTEC19WT152   2GTEC19WT153   2GTEC19WT154   2GTEC19WT155   2GTEC19WT156   2GTEC19WT157   2GTEC19WT158   2GTEC19WT159   2GTEC19WT1510   2GTEC19WT1511   2GTEC19RT150   2GTEC19RT151   2GTEC19RT152   2GTEC19RT153   2GTEC19RT154   2GTEC19RT155   2GTEC19RT156   2GTEC19RT157   2GTEC19RT158   2GTEC19RT159   2GTEC19RT1510   2GTEC19RT1511   1GTEK19RTE50   1GTEK19RTE51   1GTEK19RTE52   1GTEK19RTE53   1GTEK19RTE54   1GTEK19RTE55   1GTEK19RTE56   1GTEK19RTE57   1GTEK19RTE58   1GTEC14MTZ50   1GTEC14MTZ51   1GTEC14MTZ52   1GTEC14MTZ53   1GTEC14MTZ54   1GTEC14MTZ55   1GTEC14MTZ56   1GTEC14MTZ57   1GTEC14MTZ58   1GTEK14RTZ50   1GTEK14RTZ51   1GTEK14RTZ52   1GTEK14RTZ53   1GTEK14RTZ54   1GTEK14RTZ55   1GTEK14RTZ56  
Sierra 2500
1GTGC29JTE50   1GTGK29FTE50  
Savana
1GDFG15RT100   1GDFG15RT101   1GDFG15RT102   1GDFG15RT103