The bigger your vehicle, the bigger your tires tend to be. Larger tires require more bolts to secure them, and the 2015 Chevrolet 2500 is a large pickup truck. Many Chevy truck owners like to change out their factory tires for aesthetic or practical purposes, but in order to know what kind of tires to purchase, you’ll need to know the bolt size and pattern of your 2500.

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2015 Chevrolet 2500 bolt pattern

Even though the factory wheel sizes have changed over the years for the Chevrolet 2500, the bolt pattern has remained the same since at least 2005. The factory wheels on the 2015 Chevy 2500 are either 17 or 18 inches depending on the trim. But in either size, the bolt pattern is 8 x 6.5.

If you’re unfamiliar with bolt patterns, they’re expressed as two numbers (such as 8 x 6.5). The first number represents the number of bolts used to secure the tire. The second number is the diameter of the circle created by the bolts.

While the lug pattern is important to know when changing out your tires, there’s other info that’s also essential. See the list below for those important measurements:

Factory wheel size: 17” to 18” inches

Stud size: M14 x 1.5

Offset: -44 to 44 mm

Center bore: 116.6 mm

Wheel tightening torque: 119 Nm

MORE: Chevy lug pattern guide

How to measure your Chevrolet 2500’s bolt pattern

Changing out the tires on your Chevrolet 2500 can be expensive. The information above should be enough to do it, but you might want to measure yourself to make sure that you’re spending your hard-earned cash on the right thing. And measuring yourself is a pretty simple process!

All you need for the process is a measuring tape or ruler. Choose one of the bolts on your tire and with your measuring instrument check the distance between the center of your chosen bolt and the center of the one directly across from it. This measurement technique works to find the diameter for any tire with an even number of bolts.

Count up the bolts and put this number after it to get the bolt pattern of your wheels. Your 2015 Chevrolet 2500 should have 8 bolts forming a circle that’s 6.5 inches in diameter on each wheel.

MORE: 12 cheap and easy car mods

How to optimize your Chevrolet auto insurance

Changing the tires on your 2015 Chevrolet 2500 can give it a totally new look and feel. But those new tires probably aren’t cheap. If you’re refreshing your truck, why not save some money by refreshing your insurance as well?

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