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GMC Sierra 1500 2008 Alloy wheel fitment guide Choose appropriate trim of GMC Sierra 1500 2008:

GMC Sierra 1500 wheels and tires specs icon

Heads up! Highlighted items are for OEM wheels, the rest are replacement options

GMC Sierra 1500 2008, 4.3 198hp
Tire  Rim  Bolt pattern  THD  CB   
245/70 R17 8Jx17 ET26 M14 x 1.5 78.1
265/70 R17 8.5Jx17 ET26 M14 x 1.5 78.1
265/65 R18 8.5Jx18 ET26 M14 x 1.5 78.1
275/55 R20 8.5Jx20 ET26 M14 x 1.5 78.1
GMC Sierra 1500 2008, 4.8 299hp
Tire  Rim  Bolt pattern  THD  CB   
245/70 R17 8Jx17 ET26 M14 x 1.5 78.1
265/70 R17 8.5Jx17 ET26 M14 x 1.5 78.1
265/65 R18 8.5Jx18 ET26 M14 x 1.5 78.1
275/55 R20 8.5Jx20 ET26 M14 x 1.5 78.1
GMC Sierra 1500 2008, 5.3 319hp
Tire  Rim  Bolt pattern  THD  CB   
245/70 R17 8Jx17 ET26 M14 x 1.5 78.1
265/70 R17 8.5Jx17 ET26 M14 x 1.5 78.1
265/65 R18 8.5Jx18 ET26 M14 x 1.5 78.1
275/55 R20 8.5Jx20 ET26 M14 x 1.5 78.1
GMC Sierra 1500 2008, 6.2 409hp
Tire  Rim  Bolt pattern  THD  CB   
245/70 R17 8Jx17 ET26 M14 x 1.5 78.1
265/70 R17 8.5Jx17 ET26 M14 x 1.5 78.1
265/65 R18 8.5Jx18 ET26 M14 x 1.5 78.1
275/55 R20 8.5Jx20 ET26 M14 x 1.5 78.1

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See Alloy Wheel fitment information for GMC Sierra 1500 for other model years:

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Wheel General Info The ranges of possible values for tires and rims for a GMC Sierra 1500 2008

Tires for GMC Sierra 1500 2008

  • Diameters: 17'' - 20''
  • Width (mm): 245 - 275
  • Tire aspect ratio (%): 55 - 70
  • Smallest tire size: 245/70 R17
  • Largest tire size: 275/55 R20

Rims for GMC Sierra 1500 2008

  • Bolt pattern 6x139.7
    • Diameter: 17'' - 20'';  
    • Width (inches): 8 - 8.5;  
    • Offset (mm): 26.