The 2004 Chevrolet Trailblazer bolt pattern is 6x5, or “6 on 5”. This means that each of the tires on the 2004 Trailblazer has five bolts that each have a diameter of 5 inches.

The 2004 Chevrolet Trailblazer has many perks, like a comfortable ride, easy accessibility, and even third-row seats suitable for adults. Although its off-road performance may not be as capable as its competitors, it is supposed to serve many lifestyles and can be a good purchase if you treat it well.

One part of owning a vehicle is

tire maintenance

. This could range from switching out the factory-issue tires for upgraded ones, or simply changing the tires after a lot of use—which may be appropriate given the age of the vehicle and depending on how long you’ve been driving for. Whatever the case, you are going to need to know your bolt pattern. This

car repair

guide will help you find out what it is, along with some extra tips that could help you out.

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2004 Chevy Trailblazer bolt pattern

The

bolt pattern on the 2004 Chevrolet Trailblazer

is 6x5, or 6 on 5. This is quite straightforward to understand: all it means is that the tires on your Trailblazer each have six bolts with bolt holes that have a 5-inch (127-mm) diameter.

If you’re looking to change your tires, knowing a bolt pattern by itself won’t do. You’re also going to need to know about your Trailblazer’s stud size and thread pitch, wheel offset, center bore measurements, and torque specifications. Here’s that info broken down for you:

Factory Wheel Size: 16 inches, 17 inches

Stud size: M12 x 1.5 (12 mm stud thread and 1.5 mm thread spacing)

Offset: 22 mm to 42 mm

Center bore: 77.8 mm

Wheel tightening torque: 140 Nm

Let’s break down what all that means. A wheel’s center bore is the size of the hole in the center of the wheel. It’s important for wheels to have a center bore that matches with the hub as this reduces vibrations.

Stud size is exactly what it sounds like. It tells you the specifications of the studs, or the bolts, which you use to fix your tires to your car. Wheel tightening torque is also easy to understand—it tells you how much force to use when tightening those studs, or bolts.

Wheel offset refers to how the wheels mount in your wheel wells and how much space you have on either side of the wheel. It’s very important to get the offset specifications on your wheel right, as it may cause the wheel to rub against and cause problems with your suspension, brakes, and other parts.

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How to measure your 2004 Chevy Trailblazer bolt pattern

Want to double check this information? There’s two options open to you: checking the owner’s manual OR measuring it yourself. That’s right—if you have a measuring tape handy or some kind of ruler, you can totally check out your Trailblazer’s bolt pattern right at home.

The first part is easy to do. Just count the number of bolts on your wheels to get the first part of the measurement. The 2004 Chevy Trailblazer should have exactly six of these.

The next part is fairly easy, too. Since there is an even number of bolts, you need to measure the distance between the middle point of one hole to the midpoint of the hole directly across from it. It’s much easier than measuring a five-lug tire.

Once you’ve got that measurement, that’s it! You now know the bolt pattern of your tires.

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