Hi everyone - I just installed my 2000 XJ Sport with a 3" lift and upgraded from 15" to 16" Rubicon wheels and new P245/75R16 tires. Now, I'm looking for a spare tire and found a P245/70R16 off a 2000 XJ Classic. The difference between the two in the circumference is 1.86".

I do not have a locker or a limited slip differential and what I would like to know is -- would this spare would cause any damage if I were to need it while trail riding (back down the mountain of course)? Would it need to be installed in the front?

The difference in circumference tells me that it probably won't (along with some of the threads I've read) but I wanted to make sure by pinging it off you guys first.

Thanks in advance!

 

Open diffs.
Run it.
No problem.