Spare tire question

So I’m running 265/75/16’s and I have a rear shock relocation with 2.5” shocks, thus I am using 1.25” spacers on the rear to keep the tires from rubbing the shocks while flexed out. My wheels are 0” offset with 4.5” backspace. Question is will my OEM spares offset and backspace work out if/when I need to use it or will I rub when flexed?

 

You running factory wheels now, just with the spacers? or did you change your wheels?

Is the diameter of the 265/75/16s the same as the diameter of your spare?

 

The wheels are 16” kmc canyons 0 offset 4.5bs, the spare is 265/70 and I know I will have to swap that to a 265/75 just to match and be the same size as the others

 

How much flexing you going to do on the spare?? I get you may need to get home and drive a trail to do so but I’d imagine more careful, see your point about back spacing though.. sounds like you need fifth wheel+ tire and a carrier!!