Check Car Model
C Series
1GDJ6H1C1J50   1GDJ7H1E1J90   1GDJ7H1C1J50   1GDT7H4C1J50   1GDL7H1E1J50  
Safari
1GDEL19W1B50   1GDDM19W1B50  
Sierra 2500HD
1GTHK24G1E10   1GTHC2311F20   1GTHK23G1F20  
C7500
1GDL7D1E1J50  
Sonoma
1GTCS14W1K10   1GTCS14W1810  
Yukon XL
1GKEC16T1J10   3GKGK26U1G20   3GKGC26G1G20   1GKEC16T1J30  
Savana Cargo
1GTHG39R1120   1GTEG15W1120   1GTHG35R1110   1GTEG15W1110   1GTFG25M1110  
Sierra 3500
1GTJK39U1E20   1GTJK33G1F10   1GTJK39U1F10   1GTJK33G1F20   1GTJK39U1E30  
W4500
4KDC4B1R1J80  
New Sierra
1GDJK3411F10   1GDJK34U1F10   1GDJK3411E30   1GDJK34U1E20  
Sierra 1500
1GTEC19V1Z10   1GTEC19V1E20   1GTEC19V1E10   1GTEC19V1E30  
Sierra
1GDHC24U1E20   1GDHC24U1Z30   1GDHC24U1Z20   1GDJK34U1E30   1GDHC24U1E30   1GDJK3411F20   1GDJK3411E20  
T Series
1GDM7C1C1J50   1GDJ6C1C1J50  
Savana
1GDFG15W1120   1GDHG31F1120   1GDJG31F1120   1GDFG15M1120   1GDHG31R1120   1GJHG39R1120   1GDHG31F1110   1GDFG15W1110   1GDFG15M1110