I have an '05 FX4 w/ 2.5 spacer. With that will I be able to fit the 305/70R17? Will I have clearance? The measurement is Overall Diameter: 33.81 in. I have 275/60R18 right now and that's 30.99 in. Let me know, thx ya'll!

 

i just bought 315/70/17s today and i have the 2.5in level kit on my fx4

 

Im pretty sure they will fit fine. Maybe some minor rubbing. But wait for Wandell to chime in, im sure he knows exactly!

 

You can fit them easily if you use and OEM wheel.

 

got pix?

 

no, will be using aftermarket

 

Wandell, will that fit?

 

I doubt it unless the aftermarket wheel is almost identical to your OEM specs.

 

yeah, doubt the wheel will be the same. but, it's 17x9. what do you think?

 

my factory is 18x7.5, right?

 

2005FX4, I would stick with the 18's on your '05, aftermarket 17's may not clear your brake's.

 

oh wow. ok. i did not know that. i was told that 17's would fit, but ok. i have been thinking of upgrading my brake system, but most likely not.

 

I doubt a 315/70-17 tire will fit with a 17x9 inch wheel. Also, PawPaw is right. Ford changed brake calipers sometime during the 2005 model year. This is causing fitment problems with some (but not all) aftermarket 17 inch wheels. Personally, I'd go with a 325/60-18 (33x13.00) tire on an 18x9 inch aftermarket wheel with 5.5 or 6 inches of backspacing.

 

what is backspacing?