By previous generation, do you mean the WJ or ZJ. If you mean WJ, I won't because the bolt pattern is different (5x5). But, if you mean ZJ, most likely it will. They have the same bolt pattern (5x4.5). The KJ's bs is 5.5". The only way to know is to try it.
This site will help you on wheel information:
http://www.rsracing.com/tech-wheel.html
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2002 Jeep KJ Sport 3.7L 4x4245/75-16 Mastercraft Courser HSX, 16x7 Cragar, 2" OME MD Lift, ARB Bumper
AEM Brute Force Cold Air Intake, Flowmaster Super 44 Muffler
Currently working on: Full service on transmission & bed-lining ARB bumper
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