245.75.16..... think it will fit stock height? 30.5 inches.

235.70.16 seems like a safe bet at 29.

thoughts?

 

because they drive like crap with a flat tire

 

It's called a "space saver" spare. The name should explain it for you.

Read through the thread. If you run bigger than a 235 or 30" on a stock Cherokee YOU WILL RUB. IT may only be on the LCA's at full lock, but you'll rub.

 

Last time I was ride checked by the cops at the local coffee shop, my donut spare went missing??? 30 x 9.5-15, 235 75-15=29" Have run both, with fresh stock springs (no sag) on stock 7" cast rims, no rub, the 31's were within 1/8th of the lower control arms at full lock. Rear 30's rubbed on bumps when I had 800lb load in the back (work). On that XJ today with 3.5 lift, I run spydertrax 1.25 wheel spacers to prevent the control arm rub, 31x10.5-15 on 7"stock cast rims. They stuff right into the wheel wells on full articulate and just rub the mud off. Your 30's or 235's will do just fine at the OEM height.

 

Sorry slip up, the 30's were within 18th of the lca, the 31's rubbed the lca.
Hey what are those cops looking at in the back of my jeep? They have coffee in their hands, why are they looking hungry? Hey where's my fresh donut spare gone?

 

I have run both 235s and 30"s and neither rubbed on my XJ.

30"s


235s

 

my 30x9.50x15's rubbed pretty bad on my flares i had to do a good bit of trimming but i was running a aftermarket wheel and my springs im pretty sure were pretty wore out

 

You're right that the 235/255 is the width but there is still a height difference.

 

see this is where metric tires **** me off cause a 30x 9.50 is just that and a just saying a 30x10.50 or even 11.50 wouldn't be taller just wider so why does a 255/75 not just wider but taller than a 235/75 cause the 75 which is ur sidewall height the same i think its

 

The side wall height is not the same... it is 75% of the width.. if the width changes and the aspect ratio stays the same (75%) then the height changes.

http://www.onlineconversion.com/tire...conversion.htm

 

My 87 xj is on 31s it rubbed a little bit after I cut off the fender flairs it stopped

 

I honestly don't think mine can ride any worse than it already does

 

ahh that makes sense so what your saying is like a 235/75 uses 75% of the 235 width as the height and a 255/75 uses 75% of its width as the height its going to be taller ok well thank you for that info it clears things up

 

I have 235s and they rub on the passenger side on the control arms when doing a tight turn.

 

The 245s might be a little big and probably will rub but i ran 235s for a while and they were fine. There was a little rubbing but nothing major.