2018 Chevrolet Silverado Bolt Pattern

Everything you need to know about the 2018 Chevrolet Silverado bolt pattern, plus steps for measuring it yourself.
Written by Sarah Gray
Reviewed by Melanie Reiff
The 2018 Chevrolet Silverado features a unique bolt pattern for each of its three models—the Silverado 1500 uses a 6x5.5 pattern, while the larger HD models follow an 8x7.1 pattern for the 2500 and 8x8.3 pattern on the 3500.
The Chevrolet Silverado has been in production for over 20 years, but that doesn’t mean you have to wait two decades to give your truck a makeover. Whether you’re looking to swap out your rims or upgrade to a bigger set of wheels, you’re going to need to know your 2018 Silverado’s bolt pattern.
Here with all the specs, plus the steps you’ll need to follow to find your 2018 Silverado lug pattern on your own is
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2018 Silverado bolt pattern

Like most full-size trucks, the Chevy Silverado comes in a dizzying array of trims, cab sizes, and bed configurations. Luckily, while each of the 2018 Silverado’s three models features their own configurations, they also follow just one bolt pattern. 
  • 2018 Chevrolet Silverado 1500: 6x5.5
  • 2018 Chevrolet Silverado 2500 HD: 8x7.1
  • 2018 Chevrolet Silverado 3500 HD: 8x8.3
So, what does this all mean? 
No matter what you’re driving, your vehicle has a bolt or lug pattern that’s expressed as
# of bolts x diameter of the circle they form
Since the 2018 Silverado 1500’s lug pattern is 6x5.5, that means each wheel features six bolts set in a 5.5-inch diameter circle. Likewise, the 2500 HD will have 8 lugs per wheel in a 7.1-inch diameter circle, while the 3500 HD’s 8 bolts will form an 8.3-inch circle.
Now that you’ve got the basic info, you need a few more specs if you want to perform any upgrades on your wheels, and we’ve got them all for you right here:
2018 Silverado 1500
2018 Silverado 2500 HD
2018 Silverado 3500 HD
Factory wheel size
Stud size
14x1.5 (14 mm stud with 1.5 mm thread spacing)
-44 to 40 mm
35 mm
35 mm
Center bore
78.1 mm
124.1 mm
124.1–154.2 mm
Wheel tightening torque
190 Nm or 140 ft-lbs
190 Nm or 140 ft-lbs
190 Nm or 140 ft-lbs
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How to measure your 2018 Chevrolet Silverado’s bolt pattern

If you’re looking for a simple way to add to your mechanical knowledge, or you have another vehicle you want to spruce up with a set of new wheels, finding out your vehicle’s lug pattern on your own is simple. Just grab a ruler and pick a wheel.
Starting with any bolt on your Silverado’s wheel, measure from the outside edge of that bolt to the bolt directly across from it. If you’re driving a 1500, that measure should come out to 5.5 inches, which is the diameter of the circle created by your lugs. On the 2500 HD, that measure will come out to 7.1 inches, and it’ll be 8.3 on the 3500 HD.
If you’re trying to find the lug pattern for a vehicle with an odd number of bolts, you’ll measure from the outside edge of any bolt to the point in between the two bolts opposite the bolt you chose.

How to optimize your Silverado’s insurance coverage

Whether you’re using your Silverado as a daily driver, a rugged work truck, or anything in between, you need to be sure you’ve got it covered with reliable and affordable
car insurance
. Luckily, when you shop with
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The bolt pattern for a 2018 Chevrolet Silverado 1500 is 6x5.5. The Silverado 2500 HD features an 8x7.1 pattern, and the 3500 HD follows an 8x8.3 pattern.
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