In a message dated 99-06-26 10:00:12 EDT, lindgre@ONLINE.NO writes:

<< > machine the center hole to 2.5"
 > > use audi lug bolts up front, and porsche 911 studs on rear.
 >
 > Chris,
 > I had to bore mine at 2-5/8" to clear the front dust cup rim.
 > Larry

 I guess this is different whether you are mounting the rims on a Syncro
 or 2wd >>

yep, you dont have to machine them at all, if youre mounting them on a syncro.

chris