Cherokee9t8

From what I can make out by zooming in on the computer, your tires are 32x11.5 wide, and the stock rims seem to be 7" wide, so after looking it up quickly it looks like an 11.5" wide tire will work on the stock 7" wide rim (8" would be better, but it's no different than my 12.5" tire on my 8" rim).

So yes, looks like you shouldn't be too bad with it on the stock spare.

caged

possibly, what size is it?

10.5 or 12.5?

10.5 is pushing it for a stock 7 inch wide rim, but 12.5 even tho would fit, might rub on control arms.

it's a spare, go for it. it wouldn't hurt...

salad

Stock SPARE? You mean you have stock wheels as spares or you mean the 4" wide joke that's mounted in the cargo area?

stev-o

I'm talking about putting it on the spair rim thats im the cargo area

salad

Yeah, that won't work. It is far too skinny

Cherokee9t8

Ah, should probably of read that alittle closer and specified a stock FULLSIZE rim as a spare.. My XJ didn't have a factory spare in it, it had a factory 15x7 steel wheel with a 30x9.5 bolted in the spares location (when I bought it).. forgot XJ's came with donuts

caged

yeah, just throw it on a stock 15x7 rim. you'll be fine as a spare...

stev-o

My spair isnt a donut its a fullsize spair I believe.it takes up a good bit of space

stev-o

Are unique rims good

Gorillaxj

Just slap it on the stock rim. if you get a flat throw it on the back as if the sidewall does blow out (hardly doubt it) its safer, and The backspacing shouldn't be an issue in the rear. even if it means rotating the rear to the front to put the spare on the rear. not a big deal...

I would run it as a spare. better then nothing or an undersized spare....

and jsut to add to the tire pressure question. 50psi is to much, I believe that's listed as the max for the tire. I would recommend 35psi, and see how it wears and adjust it from there. with my 35's I run 26-28 psi as it wears them the best and still drives normally.

stev-o

Ya I dropped them to 30psi
In the morning im going back to discount to get my new tire and im going to see if they can put the tire on the spair tires rim that is in cargo area

Gorillaxj

Just a heads up, they probably wont mount it for you for "liability" reasons...

If they don't mount it. I would take it with you have have another shop mount it up.

weebur

x

weebur

Tire pressure is very important. Remember the Ford Explorer/Firestone tires/rollover accidents/lawsuits debacle? Most of those accidents were caused by under inflated tires. Under inflated tires generate a lot of heat that can cause the belts to separate and result in a blowout, especially in hot weather.

The tire inflation figures on the tire are the recommended pressure for the tire at its maximum load. As a starting point always run your tires at the figure on the B pillar (or door) sticker, especially for sustained highway driving. That figure is a compromise between handling safety, fuel economy and tire wear.

There's an Old School trick to check for proper tire pressure that I still use. Draw a line across the tire with a piece of chalk then pull straight forward and backwards several times and see where the chalk has worn off. If there is still chalk on the outsides of the tire the tire may be over inflated. Under inflated tires will wear on the outsides; over inflated tires will wear more in the center. This is a way to tweak pressure to meet your specific rig/tires/weight, etc.

Radial tires as opposed to bias ply tires tend to look under inflated. The sidewalls need to flex to keep the tire surface (footprint) flat on the ground on turns and maneuvers.

Airing down your tires while off road is fine as long as you have an air compressor to air them back up before you hit the highway.

If you have your oil changed by one of the franchise outfits always check your pressure when you get home. A lot of the kids working at these places still don't get it.

stev-o

Today I went and got my new tire at discount couldn't keep the one that they took off because they prorated it so that the new one would only be $85 oh well saved $160