What's the Bolt Pattern for a 2008 Duramax?

Tires & Wheels
1

I’m looking for some help regarding the bolt pattern for the wheels on my 2008 Duramax. Specifically, I’ve got a Chevrolet Silverado 2500HD and I want to make sure I’m getting the right specs for some new wheels I’m considering purchasing.

What I Know So Far

From what I’ve gathered, the typical bolt pattern for the 2008 Duramax is 8x180. However, I’ve seen some discussions online where folks mentioned variations or even different specs depending on the trim.

Questions I’m Hoping to Answer

  • Is the 8x180 bolt pattern standard across all variations of the 2500HD?
  • Are there any common mistakes I should avoid when buying new wheels for this model?
  • Can anyone recommend reputable brands or places to buy from?

Other Considerations

I want to make sure that the wheels I choose also have compatible offsets and load ratings to avoid any safety issues. Also, are there any ongoing discussions about other compatible wheels for this setup?

If any of you have experience or insights on this—maybe even share your own setups—I’d greatly appreciate it! Thanks in advance for your help!

Looking forward to hearing from you all!

2

The bolt pattern for a 2008 Duramax is typically 8x6.5 inches. This means there are 8 bolts with a spacing of 6.5 inches between them. Make sure to use the right diameter too!

3

Thanks for the info! Do you know if this pattern holds true for all 2008 models, or are there variations?

4

Yes, marcus42, the 8x6.5 pattern is standard across all 2008 Duramax models. The diameter of the bolts is usually around 14mm, which is important to keep in mind when buying replacements.

5

That’s good to know! What about the torque specs for those bolts? Any recommendations?

6

For the 2008 Duramax, the recommended torque is around 75-85 ft-lbs. It’s essential to follow this to avoid bolt failure during operation. Stay safe out there!

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7

Appreciate the clarification! I’ve seen some YouTube videos showing different methods of measuring the torque. Which do you think is best?

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8

I usually prefer using a torque wrench with a ratchet. It gives me more control and accuracy. Just make sure you calibrate it regularly!

9

That’s solid advice. But how do you all feel about impact wrenches? Are they too aggressive for this kind of job?

10

Impact wrenches can be great for loosening bolts but might over-torque if not careful. I always finish with a torque wrench to ensure accuracy!

11

That’s good advice, but then shouldn’t we just stick to manual tools? Seems safer.

12

Manual tools have their benefits, but sometimes speed is essential! The trick is knowing when to use which tool for the job.

13

Isn’t it funny how every mechanic has their ‘secret technique’? What’s yours?

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14

I just keep a cold beverage handy! Makes the job easier and more enjoyable. :joy: But on a serious note, always double-check your measurements!

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15

Haha, I can relate! What’s the best beverage for those longer jobs, though?

16

I’m all for iced tea! Keeps me refreshed while I tackle those bolts. Just don’t forget to hydrate! :droplet:

17

Alright, enough talk about drinks! Let’s get back on track—anyone have insights on aftermarket parts for the Duramax?

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18

The bolt pattern for a 2008 Duramax is 8x6.5. This means it has eight lug holes and a spacing of 6.5 inches across. Knowing this helps when looking for aftermarket wheels to ensure a proper fitment.

19

Great info, Joanna! I’ve been looking into new wheels, but some sellers confuse the bolt pattern with offset. Can you clarify if the offset impacts fitment?

20

Yes, the offset definitely affects fitment! A negative offset means the wheel sits further out, while a positive offset pulls it in. Make sure to check both when choosing wheels for your Duramax!