Spare Tire Help

[Mike Honcho]

I bought my car without a spare and ended up stranded with a cracked wheel/flat tire so I need to get a spare asap. I don't know much about comparing tire sizes, I'm trying find a size that will work for both front and year. I have 18x9 wheels all the way around with 245/40/18 in front and 285/35/18 in the rear. I used a tire size calculator to overlay both tire sizes and they look nearly identical in height. So I was planning to use a non-directional 245/40/18, that way position doesn't matter when changing a flat. My only concern is using a different size in the rear, I know you want both tires to be the same height on a solid axle. According to the calculator, sidewall height difference is only 0.07mm difference. Is that enough to cause any issues? I wouldn't think so, but I wanted to double check if someone has more knowledge on the subject.

 

[ttocs]

that will be a big spare in the trunk.

 

[Mike Honcho]

that will be a big spare in the trunk.

I known but it's definitely better than being stranded. I don't really use my trunk as it is

 

[waynenorcross]

that will be a big spare in the trunk.

The 2003/2004 Cobra had a space saver spare with no speed limit. Some would use two up front for drag racing

 

[Adfalenski]

The factory tire diameter diameter is 25 inches.

 

[ttocs]

I known but it's definitely better than being stranded. I don't really use my trunk as it is

AAA is my friend.