I read the FAQ's and it says that many are running 285/70/17's with no rubbing issues. However, do you need any kind of spacers for this size tire?

My questions is this:

Can I just add 285/70/17's to my stock wheels without any other additions and still be able to roll down the road?

Thanks in advance for the help.

 

YES.
However, wheel spacers are recomended for any wheelin, 1.25 would be fine
and looks better too

 

Is that 32.7?

What's the actual installed height on stock rims.

 

yep, you'll be fine....but it would definitely look better with the spacers