I recently switched from my stock 15" to a FN 16" wheel. I love the look of the truck, but it occured to me that my spare is a 15" wheel, with a much smaller diameter tire than my new tires. If I wind up having to drive on the spare for any significant amount of time, I'm more than a little concerned that I might hurt my differential.
1) Would that hurt my differential/anything else?
2) If I need to, I can pick up a 16" spare wheel and similar sized tire to what I have on the rest of the truck. How do I know the specs of the bolt pattern I'll need for the spare wheel?
Thanks in advance,