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Need help please

xXZ-71Xx

By xXZ-71Xx
in Tires, Wheels & TPMS

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xXZ-71Xx Enthusiast

xXZ-71Xx

Posted
Posted

I was getting ready to buy new tires and rims for my 99 Sierra 2500 (Stock height) truck and ran into an issue. I already bought the tires Cooper Discover AT3 275/65R18 and due to rim sizes completely confusing me to the point of giving up on figuring them out I was going to do what I did with my 03 (Buy stock 2014 18's). Unfortunately I was just made aware that the 2011 and up 2500's use a different bolt pattern so I can't do that. Does anyone have any suggestions on any hubcentric 18' that might fit those tires under the 99? Thanks

Luster Senior Enthusiast

Luster

Posted
Posted

The tires you specified will fit the Dick Cepek wheels. But the offset is quite a bit different than the stock wheels. Stock wheels I believe are a +28 and those wheels are -13... so a 41mm difference. They will be outboard about 1.6" more than the stock wheels. The tires are just slightly wider and taller, but not much. The only concern I would have would be rubbing at full steering lock, because of the 1.6" difference in offset.

 

Is your front end leveled?

xXZ-71Xx Enthusiast

xXZ-71Xx

Posted
  • Author
Posted

The tires you specified will fit the Dick Cepek wheels. But the offset is quite a bit different than the stock wheels. Stock wheels I believe are a +28 and those wheels are -13... so a 41mm difference. They will be outboard about 1.6" more than the stock wheels. The tires are just slightly wider and taller, but not much. The only concern I would have would be rubbing at full steering lock, because of the 1.6" difference in offset.

 

Is your front end leveled?

No, it is stock at the moment, Although I have a lot of threads on the T-bar adjusters left. I ended up going with these rims and am crossing my fingers that they fit. From my minimal knowledge on the subject they seem like the better choice as far as a fit goes. What do you think? http://www.4wheelparts.com/Wheels/Crux-XD812-18x9-with-8-on-6-5-Bolt-Pattern-Black.aspx?t_c=11&t_s=210&t_pt=100106&t_pn=W%2fPXD81289080318And thank you.

 

PS. love the Vet

POS VETT Enthusiast

POS VETT

Posted
Posted

If OEM styled wheels were the ones you're looking for, try oewheelsllc.com. Or, if you knew the difference in wheel offsets and didn't mind using adapters, there are custom-made ones.

Luster Senior Enthusiast

Luster

Posted
Posted

No, it is stock at the moment, Although I have a lot of threads on the T-bar adjusters left. I ended up going with these rims and am crossing my fingers that they fit. From my minimal knowledge on the subject they seem like the better choice as far as a fit goes. What do you think? http://www.4wheelparts.com/Wheels/Crux-XD812-18x9-with-8-on-6-5-Bolt-Pattern-Black.aspx?t_c=11&t_s=210&t_pt=100106&t_pn=W%2fPXD81289080318And thank you.

 

PS. love the Vet

 

Thanks! OK the +18 offset will be a lot closer to a stock fit.... only sticking out 10mm further than stock wheels.

 

10mm is less than 1/2". Your tire size is about 1/4" wider and 1/2" taller than the stock wheels, and the +18mm offset will all be factors on whether they will rub at full lock.

 

If they do rub, it wouldn't be much. Most likely a little trimming of the plastic fender liner would do it.

 

We need someone to chime in who has this set-up. Pretty common sizes.

 

Take a look at the wheel/tire thread, what fits, what doesn't.

 

I'll see if I can find a link for you.

Luster Senior Enthusiast

Luster

Posted
Posted

OK, I found this which may help ...

 

http://www.gm-trucks.com/forums/topic/160234-2656518-aggressive-tires/?p=1440619 (post number 6)

 

The only question mark would still be the offset. Like I stated before, it's only 1/4" difference (outboard), but that could be enough for the fronts to rub.

 

PS.... I'm just giving you this advise based on research and knowledge, not personal experience, so try to find someone who actually has done this to get a real world answer. :thumbs:

 

Bill

xXZ-71Xx Enthusiast

xXZ-71Xx

Posted
  • Author
Posted

OK, I found this which may help ...

 

http://www.gm-trucks.com/forums/topic/160234-2656518-aggressive-tires/?p=1440619 (post number 6)

 

The only question mark would still be the offset. Like I stated before, it's only 1/4" difference (outboard), but that could be enough for the fronts to rub.

 

PS.... I'm just giving you this advise based on research and knowledge, not personal experience, so try to find someone who actually has done this to get a real world answer. :thumbs:

 

Bill

In any case I appreciate the advice even if it is just educated guesses it still helps a lot. I understand computers and most things on cars but backspacing and offset changes confuse me completely lol. I will still try and keep looking but I think I might be ok now....At least I know it will be close. Are those 20's on your silverado?

 

BTW the rims I got do not come with the hub ring and from what I am reading on the different forum posts is that it mostly just makes mounting them easier. Did yours come with one?

xXZ-71Xx Enthusiast

xXZ-71Xx

Posted
  • Author
Posted

If OEM styled wheels were the ones you're looking for, try oewheelsllc.com. Or, if you knew the difference in wheel offsets and didn't mind using adapters, there are custom-made ones.

Yeah, originally I wanted to use the stock 2014 sierra rims and I found spacers to mount them up but the idea made me a little nervous and it would make them stick out 1.5 inches which I think would have been too much.

Luster Senior Enthusiast

Luster

Posted
Posted

In any case I appreciate the advice even if it is just educated guesses it still helps a lot. I understand computers and most things on cars but backspacing and offset changes confuse me completely lol. I will still try and keep looking but I think I might be ok now....At least I know it will be close. Are those 20's on your silverado?

 

BTW the rims I got do not come with the hub ring and from what I am reading on the different forum posts is that it mostly just makes mounting them easier. Did yours come with one?

 

The winter wheels are 20's (polished clearcoated). The wheels in my sig are the 22's. (I don't run them in winter because they are chrome)

 

No, mine did not come with hub rings, but I don't know about the 2500 trucks.

xXZ-71Xx Enthusiast

xXZ-71Xx

Posted
  • Author
Posted

 

The winter wheels are 20's (polished clearcoated). The wheels in my sig are the 22's. (I don't run them in winter because they are chrome)

 

No, mine did not come with hub rings, but I don't know about the 2500 trucks.

Cool thanks

  • 2 weeks later...
xXZ-71Xx Enthusiast

xXZ-71Xx

Posted
  • Author
Posted

Just an update for anyone else wondering. They fit with plenty of room to spare and now I wish I had bought a set of these for my other truck too.

 

100_2040.jpg

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