The wheels are 17.5 the tires are 225 45 17 the wheels would they fit on my 2005 mustang?

A bit more information within your post is required.. The offset, wheel manufacture, bolt pattern etc.. fill in the blanks and I'll see what I can find for you. Check for the offset or "ET" within the spoke area of the wheel. Also, look for a manufactures mark

The picture i post is the ones I plan on getting but ill see what i can do to get that information. This lady doesn't seem to know details like that she just wants to get rid of them

The list of specs above is what everyone needs when attempting to mount new wheels on different cars/truck etc. Going by one number (17") is not enough.. One needs the offset, bolt patter and more to verify that these wheel fit.. However, if the seller has said or shows images of these wheel on their vehicle which is just like your's, (same year etc) this is a good starting block from which to build upon. In other words, I didn't just slap a set of sparco wheel on my van without checking all the specs first.. this took at least 6 months for accumulate.

So Tom what im gathering is the wheels would work i just need difrent tires?

thanks so much for the help guys!