2018 GMC Sierra 1500 Bolt Pattern
The 2018 GMC Sierra 1500 uses a 6x5.5 bolt pattern.
Written by Jasmine Kanter
Reviewed by Pat Roache
You’ll need six bolts in a 5.5” circle to fasten a new set of rims to a 2018 GMC Sierra bolt pattern.
Drivers love pick-up trucks for their versatility. Not only do they have catalogs upon catalogs of optional equipment, but there are also plenty of tires available to customize your ride. Once you’ve found the perfect quartet of mud tires or
all-season tires
, all you need is the 2018 GMC Sierra 1500 bolt pattern to make sure you get the right set. Read on!Compare insurance quotes from 50+ carriers with Jerry in under 45 seconds
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The bolt pattern for the 2018 GMC Sierra 1500 is 6x5.5, or 6 on 5.5. Don't worry, it's not as confusing as it sounds. This expression stands for the number of bolts x the diameter of the circle they form. So, a 6x5.5 bolt pattern means five bolts forming a circle 5.5 inches wide.
Before you go to the parts store, make sure you write down the correct stud size, offset, and center bore for your wheels. Stud size is measured by its diameter and thread distance, offset by the distance between the wheel's rim center and its mounted portion, and center bore by its diameter, all in millimeters. Lastly, you'll need to know how much torque to apply.
Here are all the details:
- Factory wheel size: 17.0, 18.0, or 20.0 inches
- Stud size: M14 x 1.5
- Offset: 5 to 25 mm
- Center bore: 78.1 mm
- Wheel tightening torque: 190 Nm
How to measure your GMC Sierra 1500’s bolt pattern
The Sierra 1500 uses an even number of bolts, so measuring them is quite simple. The first thing you need is a measuring tape or ruler. Measure from the center of one lug hole to the center of the lug hole on the opposite side to get the diameter measurement. Then, tack this behind the number of bolts you count on one wheel in our bolt pattern expression we explained above!
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FAQs
What is the bolt pattern on a GMC Sierra 1500?
The bolt pattern on a GMC Sierra 1500 is 6x5.5 inches.
What lug pattern is a GMC?
Most GMC Sierras use a 6x5.5 bolt pattern. The
Sierra 2500HD
uses a larger pattern, usually 8x6.5 or 8.709. Smaller cars like Canyons
, Acadias
, and Terrains
, use a pattern as small as 6.472; for more details, check out our GMC lug pattern guide
.What size are the factory wheels on a 2018 GMC Sierra 1500?
The 2018 GMC Sierra 1500 shipped with three different wheel sizes. The Base and
SLE
trims received 17-inch wheels, while the mid-level SLT
was equipped with 18-inch wheels. The top-level Denali
trim came standard with 20-inch wheels, but buyers also had the option of upgrading to a selection of premium 22-inch wheels with five, six, or seven spokes.Estimate your repair costs for free with GarageGuard™
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