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-   -   Damage from running two different size tires (http://www.wranglerforum.com/f282/damage-from-running-two-different-size-tires-12584.html)

FlyingP 10-22-2007 10:15 AM

Damage from running two different size tires
 
Hello.
I got two flats yesterday, and had to use my buddies spare. I have a 01 wrangler sport, w/ 31s. So i had to get home with 3-31s and 1-30'' tire. It seemed to drive fine, a little bit of shudder around 55mph.
How likely is this to cause damage? I've driven about 250 miles on it, and will likely have to drive another 100 before I can get patched. any input?

Rawkon 10-22-2007 10:24 AM

your fine the shudder is most likely form unbalanced spares. if your locked on 33 or 35s and have a 31 or smaller then it may hurt something.

parrot head 10-22-2007 02:12 PM

Quote:

Originally Posted by Rawkon (Post 151425)
your fine the shudder is most likely form unbalanced spares. if your locked on 33 or 35s and have a 31 or smaller then it may hurt something.

X2

Triple88a 10-22-2007 08:00 PM

but if its open and i have 35s and i need my 30 to be my spare. its fine? lol

mrbigjeep 10-23-2007 09:25 AM

why not get a spare to be safe? instead of borrowing all the buddies stuff.

jherrin215 10-23-2007 09:56 AM

Quote:

Originally Posted by mrbigjeep (Post 151738)
why not get a spare to be safe? instead of borrowing all the buddies stuff.

What good would 1 spare do if you had 2 flat tires?? :flipoff:

MOz 10-23-2007 11:00 AM

Getting home with it is one thing but to put 350 miles on during this is not a very wise thing to do. Mismatching your tire size causes all sorts of problems with brake equilization and is really not a safe idea.

mrbigjeep 10-23-2007 12:47 PM

Quote:

Originally Posted by jherrin215 (Post 151750)
What good would 1 spare do if you had 2 flat tires?? :flipoff:

1 more tire on the axle :D

myanarchy 10-23-2007 04:45 PM

you pissed off a woman didn't you, don't lie

OdhinnsChick 10-23-2007 04:58 PM

is 1 inch really going to make that much of a difference?

JCS05Rubi 10-23-2007 05:26 PM

Quote:

Originally Posted by OdhinnsChick (Post 151818)
is 1 inch really going to make that much of a difference?

For braking, yes. If it was an ABS vehicle, he would have answered his own question by driving it, but since most jeeps aren't, he wont notice untill he needs to lock them tires up :) Its also not real good for the differential, let alone if he puts it in 4wd :p

penguin_in_a_cj 10-23-2007 05:32 PM

if your just trying to limp home on it. you should be ok.. the issue comes off-road, if you need your spare off road remeber you got there with four tires of the same size and same tread your trying to get out with something else. It can be a problem

myanarchy 10-23-2007 05:34 PM

Quote:

Originally Posted by JCS05Rubi (Post 151829)
For braking, yes. If it was an ABS vehicle, he would have answered his own question by driving it, but since most jeeps aren't, he wont notice untill he needs to lock them tires up :) Its also not real good for the differential, let alone if he puts it in 4wd :p

1" is not going to make any difference.

Mounting 30s on the front and 44s on the back would be nasty time for the tcase though.

FlyingP 10-24-2007 05:21 PM

While repairing the tires, mechanic said he heard a little grinding from the rear diff. I didn't. He said his ears are 'in tune'.(to cash register?) I didn't tell him the tires were different size, I imagine he noticed though. From what people have said here it sounds like this likely is not from running the two sizes. Is is worth worrying about it? How likely is it to give me problems. I tend to think it's nothing. opinions?

OdhinnsChick 10-24-2007 05:31 PM

Quote:

Originally Posted by FlyingP (Post 152102)
He said his ears are 'in tune'.(to cash register?)

ROFL!! That is mostly true when dealing with mechanics. Just do what I did, marry one! :p

Triple88a 10-24-2007 05:51 PM

Quote:

Originally Posted by FlyingP (Post 152102)
He said his ears are 'in tune'.(to cash register?)


Let me gues he said you need a new dif? :rofl:

FlyingP 10-24-2007 06:23 PM

new bearings once it goes. Two days 1100.

Triple88a 10-24-2007 06:31 PM

Quote:

Originally Posted by FlyingP (Post 152124)
new bearings once it goes. Two days 1100.

haha, those bearing must be with diamonds on them... if i'm correct get the clear gearz cover so you can show off hahahah:rofl:

myanarchy 10-24-2007 06:57 PM

Quote:

Originally Posted by FlyingP (Post 152102)
While repairing the tires, mechanic said he heard a little grinding from the rear diff. I didn't. He said his ears are 'in tune'.(to cash register?) I didn't tell him the tires were different size, I imagine he noticed though. From what people have said here it sounds like this likely is not from running the two sizes. Is is worth worrying about it? How likely is it to give me problems. I tend to think it's nothing. opinions?

Tell the mechanic it was his stomach rumbling and that he is a moron.


or just drain the fluid and see what comes out:flipoff:

Triple88a 10-24-2007 07:43 PM

Quote:

Originally Posted by myanarchy (Post 152140)
or just drain the fluid and see what comes out:flipoff:

Hopefully not little metal pieces like from Dereks diff. :eek:

FlyingP 10-24-2007 07:49 PM

Quote:

Originally Posted by myanarchy (Post 152140)
Tell the mechanic it was his stomach rumbling and that he is a moron:

I agree with that. I hear nothing and it runs fine. I think I'll wait for catastrophic failure.

for what its worth: what is a reasonable cost to get it repaired? I'm no mechanic

1BLKJP 10-24-2007 07:56 PM

Quote:

Originally Posted by FlyingP (Post 152169)
I agree with that. I hear nothing and it runs fine. I think I'll wait for catastrophic failure.

for what its worth: what is a reasonable cost to get it repaired? I'm no mechanic

To get a rear end torn down and re-built? I'd say 500-600 is a very fair estimation.

FlyingP 10-24-2007 09:09 PM

thanks for the insight guys

erickpl 10-25-2007 07:37 AM

For small differences, you should be okay, but keep it slow enough. Do NOT put it in 4wd or lock it.

mud707 10-25-2007 08:03 AM

I had to do the same before. I wouldn't use it for long hauls though might cause bearing issues. Where did you get a hole in your old tires. Can't you get one of them patched? It would be a lot cheaper on the wallet to do that.

skeeter 10-25-2007 08:28 AM

Quote:

Originally Posted by FlyingP (Post 152169)
I agree with that. I hear nothing and it runs fine. I think I'll wait for catastrophic failure.

for what its worth: what is a reasonable cost to get it repaired? I'm no mechanic

Changing differential fluid is very easy and you can see for yourself if there's a problem.
Don't wait till there's a problem, that's when it gets really expensive.


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