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1981 GMC K2500 Sierra Classic Aftermarket Truck Parts

Discover our selection of aftermarket truck parts across multiple categories. From wheels and tires to suspension, performance upgrades, and exterior and interior enhancements, find everything you need to take your 1981 GMC K2500 Sierra Classic to the next level.

Wheels & Tires for a 1981 GMC K2500 Sierra Classic

Information about the 1981 GMC K2500 Sierra Classic

What is the Bolt Pattern (PCD) for a 1981 GMC K2500 Sierra Classic?

6x139.7

What is the Center Bore / Hub Bore on a 1981 GMC K2500 Sierra Classic?

78.1mm

Does the 1981 GMC K2500 Sierra Classic use Lug Nuts or Lug Bolts?

Lug Nuts

What is the Thread Size on a 1981 GMC K2500 Sierra Classic?

M14x1.5

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