03' Silverado 4x w/ 255/75R-16's and No Lift?

I want to get some ground clearance, but I'm not willing to spend $1800 minimum for a 4" lift. There is no smaller lift. I don't need a big
flotation tire for sand or mud, I just want clearance for rocks on fire trails.
The tire guys say I can replace my 245/75R-16's (30.7" tall by 9.8" wide)with 265/75R-16's (31.9" tall and 10.5" wide). But he didn't know about 255/75R-16's (33.3" tall by 10" wide).
The 255/75R-16's would actually be a bit wider, and a lot taller. Any idea if they are going to fit?
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I believe that the 265/75R16's are wider and taller than the 255/75R16's.
width/heightRimsize

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On Thu, 26 Feb 2004 08:04:37 -0500, "Smelly Belly"

Actually it is width/aspect ratio/rimsize. The aspect ratio is a percentage of the width. With a width of 265, a 75 aspect ratio would put the height at 198.75. (Note this is just the sidewall height and obviously not overall diameter.)
Matt 99 V-10 Super Duty, Super Cab 4x4
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Correct, the sizes are as follows: P265/75 R16 Tread Width = 10.4" Diameter = 31.6"
P255/75 R16 Tread Width = 10.0" Diameter = 31.1"
My 1999 Z71 came with the P265/75 R16 as standard so I would imagine they'll fit an 03'.
Brian

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Hi, BFG has a size 255/85 R16 that's a bit over 33" It's a tall/narrow tire; it comes in the Mud-Terrain tread. Had 'em on my 94 f250 with no mods, other than the bumper ground & shimmed forward. Casey

$1800
fire
know
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Smelly Belly wrote:

Yea.. Your right. I MEANT to put 255/85R-16's. I typo'ed the size. The 255/85R-16's (usually only used on Dualies) are the 3.3" tall by 10" wide I was meaning to talk about.
The width shouldn't be an issue, only the height might be an issue on a unlifted truck. And probably only an issue on the front.
Anyone put those on a 1/2 ton 03' or up Silverado?

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RWC wrote:

Again with a typo!
255/85R-16's, 33.3" tall by 10" wide (if on a 7" rim).
Tall and thin...
But still a hair wider than the stock 245/75R-16's.
245/75R-16's, 30.7" tall by 9.8" wide (if on a 7" rim).
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Seems to me that if you increase overall tire diameter by 1.2" (30.7" -> 31.9") you are only raising the lowest point fo the diff .6". Don't know how much extra ground clearance you are looking for, but .6" isn't that much.
my .02
Derek
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On 27 Feb 2004 08:48:35 -0800, snipped-for-privacy@socal.rr.com (derek) wrote:

But sometimes it is juuuuuusssssstttttt enough. :)
Matt 99 V-10 Super Duty, Super Cab 4x4
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derek wrote:

It's going from 30.7" to 33.3" to get 2.6" taller tires. So, that's 1.3" more clearance. That's just about enough ;-)
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RWC wrote:

03' Silverado 4x w/ 255/85R-16's and No Lift?
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RWC wrote:

I have 255/85R-16'BFGoodrich Mud Terrains on my 2003 1500K Silverado. That's 33.3 inch tall, 10 inch wide. That is the TALLEST tire that will fit without a lift. They look like they were made for the truck, and lifted the ride height up over 1.5" from standard height.
I can turn to full wheel stops, and go over big bumps, and they don't rub at all. But, that's because they are fairly narrow tires.
http://www.bfgoodrichtires.com/assets/pdf/mud_terrain_ta_km.pdf
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