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Old 01-27-2004, 08:41 PM   #1
DDMan
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Unhappy Help Nail in 17's, Running on 17's + Stockers.

Alright, got a nail in my nice 17" tires, and so Im driving on a single (nearly bald) Stock 16" + RE92 (205/55/16). All the other tires are 225/45/17 Kumho 711.

My question is, I HAVE to go to school tomorrow, and I dont want to damage my car, should I

1) Keep the single Stock wheel/tire on the rear drivers side and keep all the other 3 as the 17's.

2) Put the other good Stock wheel/tire on the other side in the rear and drive with 17"s up front, and stockers in the rear.

I only have 2 stock tires that I would even remotely drive in the rain with, so I cant put all the stock wheels/tires back on...

Any suggestions will help, School is 50+ miles away, and I would feel safer with both stockers in back and 17's up front, but I dont know if that will severely damage my center diff.
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Old 01-27-2004, 08:47 PM   #2
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Anything will damage your diff. Try flat fix or a taxi.
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Old 01-27-2004, 11:04 PM   #3
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You cannot mix and match like that...you are going to destroy something like that.
Get the one with the nail fixed, or use fix a flat, but do not drive around with mixed up wheel/tire sizes....it could end up costing you several thousand dollars!!!

GEEZ...figure it out....
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Old 01-28-2004, 12:37 AM   #4
c_hunter
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Whoa, there's some confusion here. The stock 16" wheel/tire combo and 225/45-17 tires differ by 0.29" circumference based on the nominal diameter. Subaru states that all tires must be within 0.25" circumference. I think 0.29" is pretty close to 0.25", so it's probably just fine for short distances (<50 miles).

Heck, that 16" wheel/tire combo is closer than the compact spare would be!!

Craig
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Old 01-28-2004, 01:51 AM   #5
DDMan
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Quote:
Originally posted by c_hunter
Whoa, there's some confusion here. The stock 16" wheel/tire combo and 225/45-17 tires differ by 0.29" circumference based on the nominal diameter. Subaru states that all tires must be within 0.25" circumference. I think 0.29" is pretty close to 0.25", so it's probably just fine for short distances (<50 miles).

Heck, that 16" wheel/tire combo is closer than the compact spare would be!!

Craig

Thats what I thought!! I was wondering if these guys realized that the tire size I got was near dead on to stock. The main thing is I have to drive to and from school, which is just avout 50 miles round trip.

Im sure ill be fine, but im jsut gonna keep the one stocker in back and take it easy round corners (although 2 stockers in the rear would be oversteering FUN! )
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Old 01-28-2004, 10:35 AM   #6
Sergeant_V
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Measure the circumference. I'll bet the difference is greater than you think as you described the stocker as nearly bald.
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Old 01-29-2004, 03:43 PM   #7
JC
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Quote:
Originally posted by c_hunter
Whoa, there's some confusion here. The stock 16" wheel/tire combo and 225/45-17 tires differ by 0.29" circumference based on the nominal diameter. Subaru states that all tires must be within 0.25" circumference. I think 0.29" is pretty close to 0.25", so it's probably just fine for short distances (<50 miles).

Heck, that 16" wheel/tire combo is closer than the compact spare would be!!

Craig
Assuming they are all brand new, which they aren't and assuming that all tires are exactly their reported size, which they aren't. 50 miles is not a short distance.

JC
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Old 01-29-2004, 10:47 PM   #8
mch
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put ONE 16" on the front. there is an open diff between the front wheels and this will give you some wiggle room on tire diameter. DO NOT put mismatched PAIRS on the car. This will certainly stress the center diff.

Get the tire replaced ASAP and try to match rolling diameter.

good luck.

edit>spelling

Last edited by mch; 01-30-2004 at 09:33 AM.
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Old 01-30-2004, 01:00 AM   #9
c_hunter
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Quote:
Originally posted by JC
Assuming they are all brand new, which they aren't and assuming that all tires are exactly their reported size, which they aren't. 50 miles is not a short distance.

JC
I did the calculation based on the nominal tire size. If you wanted a real comparison, you could measure the rolling circumference of each tire with some chalk and a measuring tape (measure the ground distance for 1 revolution).


Regardless it's still going to be a heck of a lot closer than using the compact spare, and those are rated for 50 miles.

Craig
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