Back to the old drawing board

[TravelinSierra]

An uncle and me talked about the tires, then got sidetracked and I said that I would put 18" rims on with 8.5 inch depth. He said that it couldn't be done because of the rubbing against the fender well walls.

 

Now, I don't know whether to believe him or not, because sometimes he's full of it; Like, don't get directions from him, he'll send you a different way. And so on.

 

Any suggestions?

[cambo]

Um...what size tires are you going for? I know a guy that has 20x9 inch rims with low profiles and he doesn't scrub at all,and his truck is fairly low. His truck is a 2001 silverado 2x4.

[TravelinSierra]

Recommended size for tires on the 18s I wanted were 265/70-16

[cambo]

Recommended size for tires on the 18s I wanted were 265/70-16

 

<{POST_SNAPBACK}>

 

 

Um...that size tires won't fit on an 18" rim.

 

That is a 32" tire you are looking at, I am not sure how much scrubbing that will do because I do not know how low your truck is. If I could find out what size tires his was I will post them back up.

[TravelinSierra]

The truck's height is factory stance.

 

This is wheel that I was going get:

http://www.bigwheels.net/?location=wheels&...&bold_id=158698

[pm26]

Have you considered wheels this size?wheels

 

Note: A slight suspension lift may be required

[TravelinSierra]

Have you considered wheels this size?wheels

 

Note: A slight suspension lift may be required

 

Your input is useless. Don't post something that detracts from the thread's meaning. (Don't mean to be a backseat moderator, but it's an annoyance and it's aggrevating.)

 

kthx

[Buggle_96]

Have you considered wheels this size?wheels

 

Note: A slight suspension lift may be required

 

Your input is useless. Don't post something that detracts from the thread's meaning. (Don't mean to be a backseat moderator, but it's an annoyance and it's aggrevating.)

 

kthx

 

 

You still sour about having two differnet sized tires on your truck?

 

[ZZebes]

to the best of my knowledge you shouldn't have any rub problems with that tire since it isn't much larger than the new factory 17's

[pm26]

There are two things to consider here:

 

1. Overall tire diameter being about the same as that of the original tire, which is obviously done by using an 18 inch tire with a lower aspect ratio.

 

2. Rim width. Keep in mind that the same tire can be mounted on a range of rim sizes. As an example, I'll use an LT 31X10.5/R 15 tire. It can be mounted on rims 7 to 9 inch wide. This is according to the tire fitment manual that tire stores use. My Nissan pickup originally had 31X10.5/R15 tires on 7 inch wide factory rims. There was no rubbing, but the truck had adjustable wheel stops and these were adjusted to permit less than full turning of the wheels, thus giving the truck a very wide turning radius. So, even though the tires did not rub, some compromise was necessary ,i.e. wider turning radius. And they used the narrowest rims they could for these tires at the factory. If they had used a 9 inch wide rim with the same tire on this truck, I am convinced it would have rubbed against the inner fenders.

A 4x4 Nissan Pathfinder with off-road package used the same tires/wheels. But the front suspension had less travel than the truck, so Pathfinder owners complained of occasional rubbing of the tires against inner fenders when off-roading.

 

My advice is, if you want to avoid rubbing with larger tires, get the narrowest wheel that will safely accomodate that size tire. You may be able to use 8 inch wide rims. 4X4 trucks have higher riding height, so it is always easier to make enough clearance for larger tires. Also, torsion bars can be cranked up easily and suspension raised. This luxury is not possible on 2WD truck versions.

 

I do not think GM trucks have adjustable wheel stops like my Nissan truck had. This was a nice feature, as it allowed limiting the turning of the wheels to prevent rubbing with oversized tires.

[TravelinSierra]

Okay, advice taken.

 

Though, those 18x8.5 inch rims that I wanted to fit, and the recommended tires were 265/70-16, would they be able to fit?

 

Okay, I had an idea some day earlier, and I wondered if I kept the 255/70-16 up front (new rims), and set the 265/70-16 in the back (new rims), would 255's be able to wrap around those 18x8.5 rims?

[Loomis462]

first of all..... a 265/70-16 is a tire designed for a 16 inch wheel, you would need something that reads xxx/xx-18

 

if you have 4x4 you need the tires to have the same diameter, which means toying with aspect ratio if you want wider tires in the back. to find out the diameter of the tires you want to use here is the conversion

 

say you have a tire 265/70-18

265 is the width of the tire in millimeters

70 is the aspect ratio of the sidewall, 70 meaning the sidewall is 70% of the width.

this tire would effectively have a sidewall width of 265*.70 = 185.5mm

double the sidewall width since the total height of the tire includes 2 sidewalls.

take this number and convert to inches, then add 18 for the wheel, this is the height of the mounted tire.

[SilveradoLAX7]

Have you considered wheels this size?wheels

 

Note: A slight suspension lift may be required

 

Your input is useless. Don't post something that detracts from the thread's meaning. (Don't mean to be a backseat moderator, but it's an annoyance and it's aggrevating.)

 

kthx

 

 

I know the Saints really S*** the bed today but you don't have to be such a grump. Besides I got a chuckle out of his post.

 

-Jay

[TravelinSierra]

Okay, so the information was wrong.

 

I have a 2WD

 

So...if I was to get those 18x8.5s, would 255/70-18 work? Or would it be wiser to go with 265's?