Stock 2012 5.0 GT 18" mustang rims fit?

[EMCD]

Stock rims and tires, all 18", not sure about B/S, but I think you all said they fit in other q's on this forum. Tires and wheels all for $600.00.

[SBDave]

I just did a quick search.  Looks like the wheels are 18x8 with +44mm offset (or 6.25" backspacing).  So you would have to run a big spacer around 1" thick.  You'll have to measure your car to figure out the exact width of spacer you need.  Factor the cost of those spacers into the price of this tire/wheel package.  Some people run spacers like this without having issues.  Other people advise against using that large of a spacer. 
Dave

[EMCD]

thanks Dave.

[cudazappa]

Simple rule for Ford Mustang rims onto an E-body

Up to 8.5" wide to figure out your spacer:

if the offset is +44 then you need a 44mm spacer to return to 0 offset.  (44mm is 1.73" btw)

When you get to 9" or wider you need to be very careful of offset/backspace because all our cars are built differently and it gets tight on a STOCK suspension with that wide wheels.

Bolt on spacers are the only way to go and they are generally safe.  The attaching hardware is critical with them.  They need to be the correct length and in good shape.

Also of note is that the center register is smaller on the ford rims.  In the rear there's no problem because the spacer will  extend past the factory center register of the rear end.  In the front, if the spacer doesn't extend past the center register you will need to make a choice, turn the register of the rim or turn the rotor.  When I ran 15/16" spacers I turned the rotors.  When I went to 0 offset rims again, I sold the unmodified Ford rims (at a profit!) and just bolted my new rims to my rotor, no issues.