[Boost or bust]

What would happen if you had a 285 30 20 inch on one side of your rear axle and 305 30 20 inch on the other side? Will the few millimeter difference be enough to cause a problem with the differential? would it go into limp home mode has anyone experiment with this yet ? I ask because I have an extra 285 30 20 inch tire Mounted on an extra rim that I plan to take on longer trips and use in case of a nonrepairable flat was hoping I could just put it on front or rear positions of the car and go .. ideas?

[Gunkk]

Bad things, yes, yes. Don't mix rear sizes or you will do bad things to the diff.

It went into limp mode exactly because it is trying to protect itself.

[Boost or bust]

So, since we have no spare, and assuming the inflation kit won’t fix a particular flat, one would have to carry 2 spare tires premounted on wheels - one for front and one for rear. Other great ideas?

[Gunkk]

Call roadside assistance, onstar, get AAA, a rider for towing on your insurance, or buy a car without a staggered wheel setup.

[CT ZL1]

Originally Posted by Boost or bust

So, since we have no spare, and assuming the inflation kit won’t fix a particular flat, one would have to carry 2 spare tires premounted on wheels - one for front and one for rear. Other great ideas?

I think your chances are getting pretty small

1. That You will even get a flat tire
2. Fine u get a flat then your tire inflation kit will not fix it
3 See 1 and 2 then u have a spare but its only for front tire so its the rear tire
thats damaged.

I think by now u will have a better chance of winning Lotto than having all these things work against you

[Boost or bust]

Originally Posted by CT ZL1

I think your chances are getting pretty small

1. That You will even get a flat tire
2. Fine u get a flat then your tire inflation kit will not fix it
3 See 1 and 2 then u have a spare but its only for front tire so its the rear tire
thats damaged.

I think by now u will have a better chance of winning Lotto than having all these things work against you

I know, right! Us poor poor ZL1 guys! I now also carry a tire repair kit, the plug type. Won’t even need to remove the tire from the car. Just pull out the nail/screw, plug it and off I go. Things get sucky for us if the tire is not repairable. Step 1: call tow truck. Step 2: car flat bedded to repair shop. Step 3: repair shop orders new tire because NOBODY stocks our sizes. Step 4: enjoy a 2days hotel stay! This is why I now carry a full size wheel/ tire combo. In the trunk for long distance treks. The joy of it all 😻