Mopar Forums - Need center hole diameter of 99 up Grand Cherokee wheel for custom swap to Chevy truc

What is the diameter of the 1999 up Grand Cherokee wheel center hole? I need the size in millimeters and it need to be exact – my tape measure won’t do. I need to know how much the center hole will have to be opened up if you wanted to put Jeep Grand Cherokee SRT8 20 X 10 wheels on the Chevy full size truck or 67 – 78 Cadillac Eldorado. The more people who put the Jeep SRT8 wheels onto different cars/trucks, the more custom wheels will become available and the cheaper they will be to buy.
http://i292.photobucket.com/albums/m...rokee-srt8.jpg
http://i292.photobucket.com/albums/m...rokee_srt8.jpg
http://i292.photobucket.com/albums/m...17SSwheels.jpg

As you can see from the pictures below, some have already started putting the Jeep wheels on the Eldos and I’m working on a pro touring application for the Chevy Truck too.

http://i292.photobucket.com/albums/m...p_Wheels_1.jpg
http://i292.photobucket.com/albums/m...withwheels.jpg
http://i292.photobucket.com/albums/m...stomWheel5.jpg

Thanks in advance,
Cody