It has a 5 bolt pattern. I am not sure of the measurements though..
4 1/4"
http://www.discountedwheelwarehouse.com/Cadillac___Vehicle_Bolt_Pattern_Reference.cfm here are the bolt patterns
5 x 4.5
1988 thru 1993 Saab 900 is the same as the Saab 9000 as they use the same brakes. 4-bolt, 108mm circle. They use lug bolts instead of lug nuts to secure the wheel to the hub.
For all Cherokees from 1984 to 2001 the bolt pattern is 5x4.5"