Is 8×180 the Same As 8×6.5 and Will They Fit or Not?

Is 8×180 the same as 8×6.5 inches or not? This is a very common question.

Many different vehicle owners ask this question very often. It may seem like a very difficult question, but it’s not.

Let’s learn will 8×180 fits 8×6.5 or not and why.

What Does 8×6 And 8×180 Mean?

8×6.5 means the bolt pattern with 8 studs is 6.5 inches or 165.1 mm. 8×180 means the bolt system with 8 studs is 180 mm, or 7.087 inches and round.

The first number in the pattern represents the stud number and the second number indicates the roundness of the bolt.

First number is always written numerically but the size is in inches or mm.

5×100 means a bolt shape with 5 lug, 100 mm round diameter. Bolt dimensions such as 4×108, 5×120.7, 6×114.3, and 8×200 are available.

Is 8×180 the Same As 8×6.5?

No, 8×180 is not the same as 8×6.5 inches. But you can convert 8×180 to 8×6.5 with the help of a wheel adapter.

The factory studs of the adapter will protrude outside, and you need to trim to factory studs to fit in the adapter plates.

So, 8 lug 180 mm is convertible to 8 lugs 6.5 inches or 165.1mm with the help of wheel adapters.

There is a huge debate among vehicle owners about whether using wheel adapters is safe or not.

As a mechanic, I don’t recommend using wheel adapters.

But if you insist, I will advise you to choose a 1-inch wheel adapter.

Cause it’s less unsafe than 1.5 or 2-inch wheel adapters.

Though 8×180 and 8×6.5 lug patterns are different, they are convertible.

So, if your lug pattern is 8x180mm and you want to convert it to 8×6.5 inches, don’t worry.

Conversion is possible, and you will need a 1, 1.5, or 2-inch wheel adapter for the conversion process.

You can also convert 8×6.5 to 8×180.

But whether it’s safe or not is debatable.

What’s the Difference Between 8×180 to 8×6.5

From 1999 to 2010, General Motors manufactured an 8×165.1mm or 6.5-inch lug pattern.

But from 2011 till now, GM has an 8x180mm lug pattern in their vehicles.

If you own a GM truck from the 1999 to 2010 model, your lug pattern is 8×6.5 inches.

On the contrary, if your own any GM pickup trucks from 2011 till recent models, your lug pattern is 8×180.

Many GM truck users don’t know the difference between 8×180 and 8×6.5 inch lug patterns.

Their measurements differ, but you can convert 8×180 to 8×6.5 or 8×6.5 into 8×180.

You will need a wheel adapter for the conversion.

Will 8×180 Fit 8×6.5?

Yes, 8×180 will fit on an 8×6.5 lug pattern.

But you will need a wheel adapter for the fitting.

There are 03 most common wheel adapters used in a pickup truck.

  1. 1-inch wheel adapter
  2. 1.5-inch wheel adapter
  3. 2-inch wheel adapter

Among them, a 1.5-inch wheel adapter/spacer is mostly used during the conversion.

So, if you want to convert 8×180 into 8×6.5, you will need to buy a wheel adapter.

Is 8×6.5 the same as 8×180?

No, 8×6.5 and 8×180 are not the exact measurements, but they are convertible with the help of a wheel adapter.

8 lug patterns 6.5 inches or 165.1mm and 180 mm are clearly not the exact measurement.

Using a wheel adapter, you can convert an 8×6.5 into 8×180 or an 8x180mm into 8×165.1mm.

Will 8×6.5 Fit 8×180?

Yes, but you will need a wheel adapter or spacer for the conversion.

8×6.5 inch will fit an 8x180mm with the help of a 1, 1.5, or 2-inch wheel adapter.

Most vehicle owners use a 1.5-inch wheel adapter to convert 8 lug pattern 6.5 inches into 180 mm.


What bolt pattern is most popular?

Most popular bolt pattern is the 5-Lug bolt pattern. It is designed for standard, midsize and full-size luxury vehicles.

It is used to make later cycles more accessible. 5×100, 5×110, 5×127, 5×139.7, and 5×165.1 are a few examples.

What uses 8×180 bolt pattern?

In medium-sized, regular and high-end cars, 8×180 bolt sets are used. Chevy Silverado 2500, 3500 and GMC Sierra 2500,3500 use that type of holes for bolts. Before, they used 8×6.5 designs and then switched to an 8×180 pattern design.

When did Chevy go from 8×6 5 to 8×180?

In 2011, Chevy Silverado and GMC Sierra changed to using 8×180 bolt pattern instead of the old 8×6.5 one. Before, 2500 and 3500 trims of these cars used a bolt pattern called 8×6.5. They had used that shape for way too much time. The newer Chevy and GMC cars also use the 8×180 bolt pattern.

What uses 8×6 5 wheels?

The 8×6.5 bolt sample has been a tried and authentic desire for vehicles for pretty some time. Dating all the manner back to 1946, the Dodge Ram 2500 and 3500 have relied on this sample. Not to be outdone, the 1955-1998 Ford F-250 and F-350 vans additionally sported this trusty layout. And let’s not overlook the Chevy Silverado and GMC Sierra 2500 and 3500 trims from 1967-2011, which additionally boasted the 8×6.5 bolt sample. Even the potent Hummer H2 was constructed with this conventional bolt pattern in mind.

Is 8×165 the same as 8×6 5?

They havethe same bolt pattern but in different measurement systems. 6.5 inches are equal to 165.1 mm. There are no real differences between them rather than different written names. Both bolt patterns can be used in the same vehicle.

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Final Thoughts

GM mostly used an 8-lug pattern in all pickup trucks.

Sometimes people get confused about the lug/bolt pattern and whether a conversion is possible or not.

Hopefully, this article has ended up your confusion.

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