VIN Pref
Sierra 2500
1GTGC29UXE50   1GTGC24UXE50   1GTGC24UXE51   1GTGC24UXE52   1GTGC24UXE53   1GTFC29UXZ50  
5500
J8DE4B14X790  
Sierra
1GDGC34FXF00   1GDGC24RXF00   1GDJC34RX000   1GDKC34FXF00   1GDJK34RXF00   1GDJK34JXF00  
Sierra Classic 1500
1GTEK19MXR50   1GTEK19RXR50   1GTEK19RXR51   1GTEK19RXR52  
Sierra Classic 2500
1GTGK24RXR70   1GTGK24RXR71   1GTGK24RXR72   1GTGC29RXF00   1GTGK23JXF00   1GTGK23JXF01   1GTGK23JXF02   1GTGK23JXF03   1GTGK23JXF04   1GTGK23JXF05   1GTGK23JXF06   1GTGK23JXF07   1GTGK23JXF08   1GTGK23JXF09   1GTGK23JXF010   1GTGK23JXF011   1GTGK23FXF00   1GTGC24RXR70  
C Series
1GDJ7H1BXJ50   1GDJ6H1DXJ50   1GDG6H1CXJ50   1GDL7H1CXJ50  
W4500
4KDC4B1RXJ00   J8DC4B14X700  
Safari
1GKEL19WXB50   1GKEL19WXB51   1GKEL19WXB52   1GKEL19WXB53   1GKEL19WXB54   1GKEL19WXB55  
Savana
1GDFG15WX110   1GJHG39RX100   1GDFG15RX100   1GDFG15RX101   1GDFG15RX102   1GDFG15RX103   1GDFG15RX104   1GDFG15RX105   1GDFG15RX106   1GDFG15RX107   1GDFG15RX108   1GDFG15RX109   1GDFG15RX1010   1GDFG15RX1011   1GDHG31RX100   1GDHG31RX101   1GDHG31RX102   1GDHG31RX103   1GDHG31RX104   1GDHG31RX105   1GDHG31RX106   1GDHG31RX107   1GDFG15RX110   1GDFG15RX111   1GDFG15RX112   1GDFG15RX113   1GDFG15RX114   1GDFG15RX115   1GDFG15RX116   1GDFG15RX117   1GDFG15RX118   1GDFG15RX119   1GDHG31RX110   1GDJG31RX110  
W3500
J8DB4B14X700  
Suburban
3GKGK16FXG50   1GDEC16RXJ70   1GDFK16RXJ70   1GDFK16RXJ71   1GDFK16RXJ72   1GDFK16RXJ73   1GDFK16RXJ74   1GDFK16RXJ75   1GDFK16RXJ76   1GDFK16RXJ77   1GDFK16RXJ78   1GKFK16RXJ80  
Sierra Classic 3500
1GTHK33JXF00   1GTHK33JXF01   1GTHK33JXF02   1GTHK33JXF03   1GTHK33JXF04   1GTHK33JXF05   1GTHK33JXF06   1GTHK33JXF07   1GTHK33JXF08   1GTHC33JXF00  
Forward Control Chassis
1GDKP32YX350  
Sierra 1500
1GTEC19TXE50   1GTEK14VXE50   1GTEC14VXE80   1GTEC14TXZ50   1GTEC14TXZ51   2GTEK19TX130   1GTEK19VXZ50   1GTEK14TXZ50   1GTEK14TXZ51   1GTEK14TXZ52   1GTEK14TXZ53   1GTEK14TXZ54   1GTEK14TXZ55   2GTEK19VX150   2GTEK19VX151   2GTEK19VX152   2GTEK19TX100   1GTEK14VXZ50   1GTEK14VXZ51   1GTEK14VXZ52   1GTEC14TXE50   1GTEC19TXZ50   1GTEC19TXZ51   1GTEC19TXZ52   1GTEC19TXZ53   1GTEC19VXZ50  
Jimmy
1GKCS18WXK50   1GKCS18WXK51   1GKCS18WXK52   1GKCS18WXK53   1GKCT18WXK50   1GKCT18WXK51   1GKCT18WXK52   1GKCT18WXK53   1GKCS13WXK50  
B Series
1GDL7T1CXJ50  
Yukon
1GKEK13RXR00   1GKEK13RXJ10   1GKEC13RXJ80   1GKEK13RXR50   1GKEK13RX170  
Various
1GKDT13WX200   1GKDT13WX290   1GKDT13WXK00  
T Series
1GDJ6C1CXJ50  
Sonoma
1GTCS144XK50   1GTCS144XK51   1GTCS144XK52   1GTCS19XX850   1GTCS19XX851   1GTCS19XX852   1GTCS19XX853   1GTCS19XX854   1GTCS19XX855   1GTCT19XX850   1GTCT19WX850   1GTCT19WX851   1GTCT19WX852   1GTCT14WX850   1GTDT14XXK50   1GTDT19XX850  
Savana Cargo
1GTFG25MX100   1GTGG29RX100  
C6500
1GD16H1DX180