Strut Space

I am not sure of this link will work:

http://www.oreillyauto.com/site/c/detail/MRG0/2375.oap?ck=Search_wheel+spacer_N0291_-1_2666&keyword=wheel+spacer&pt=N0291&ppt=C0337

Mr. Gasket brand (PN 2375) sold by O'Reily Auto Parts.

You might be able to pick up a pair at you local parts store or a well stocked tire and wheel store.

From what you said 10mm might be more than necessary. The spacers we use (in front) are 7 mm (1/4"). Use the thinnest spacer you can. A 1/4" clearance between the tire and the spring seat is likley enough. Be sure the studs are long enough to get good thread engagement. You should have at least 12mm of thread engagement (9.5 revolutions of the lug nut). More is better.