14".

Scion xa bolt pattern is 4x100.

http://boise.craigslist.org/pts/1951700880.html

The seller got them as rent payment and THINKS they came off of a ford. I want to put them on my scion xa.

According to this site... if it was on a 92-97 ford escort then I think they will fit.
http://www.vehicle-bolt-pattern.com/...nce-guide.html


Do you think these will fit my scion xa? They are 50 minutes from my house so I want to see what others thought before I wasted my time.

 

The most common PCD for 4 bolt Fords is 4x108mm but, you could call the seller and ask them to measure the distance from center to center of the bolt holes to be sure, If he cant confirm the car they came off of. Some 14 inch wheels will clear xA/xB front calipers and some will not depends on the shape of the back of wheel.