Anybody running 18" Cobra R's on pre-93 Mustangs w/5lug conversion?

[y2kcobrar]

Hey I work for a Ford Racing dealer and some of our customers have been asking if the new Y2K Cobra R 18" wheels will work ok on the pre-93 Mustangs with 5-lug conversion. We haven't had anybody do it around here so I don't know what to tell them. Any comments would be greatly appreciated. Thanks in advance.
http://www.gefracing.com