Backspace required for 285/75/16

[UKTJ]

I am looking at putting 285/75/16’s on my TJ once the lift is complete. This is roughly speaking 33/11.5.

My understanding is that without spacers the widest I can go on stock wheels with 5.25” of backspace is 10.5”. On that basis I am looking at using a wheel with 4.5” of backspace. In my mind all the extra backspace is on the inside side of the wheel, but only half the extra tire width is, so this combination will work.

Is my logic sound?

 

[PRNDL]

I'm running 285/75r16s on stock moab wheels without spacers. The moabs have 5" backspace.

My rear tires have ~1" of clearance between the tire and upper spring mount.

You should be fine with 4.5" BS, but I agree, 5.25" might not provide enough clearance.