I want to replace the spare tire on my 2012 GC Overland. It has 265/60R18 tires. The OEM "full size spare" doesn't have the same size tire, it's narrower and has a steel rather than aluminum wheel. Can I put a 265/60R18 tire on the OEM spare rim?
Some people have swapped in bigger tires (not on spare rim) but they have had to run a lower PSI so the lid with lay flat. Then you would need a compressor or can of air in the event you would ever need to use or possibly you might be able to use depending how low the pressure is under OEM. I don't remember what PSI they have ran them at to get the lid to lay flat.