Ski, As I understand it the standard Delorean calipers will be ok but spacers have to be also used to get the extra distance between them. I have not had the time to work it out yet. Then replacing them with vented rotors will work. Again, as I understand the cross drilled solid rotor w/o vent would be about the equal with vented rotor. I'm shipping rotors off to a company who will work out the details.Messing with brake parts could get into major libality problems. Proceed with caution and have the work professionally done unless you try to do it yourself.That's what I have to do. John -----Original Message----- From: W."Ski" Lukowski [mailto:vegascop1@xxxx] Sent: Saturday, May 17, 2003 11:03 PM To: dmcnews@xxxxxxxxxxxxxxx Subject: RE: [DML] Front rotor... cross reference? John, Rotors are great, but did you look into the upgrade in calipers? Also, these crossed drilled rotors you have, are they vented or plain solid iron? See, I like the idea on getting away with solid rotors and replacing them with vented. Let me know if you have any experience with that subject? Ski 4649