Lift Differences Between 1997 and 2003

I know there were a few changes, anyone know what they are? I'm helping a buddy of mine use my old 4" kit and i need to figure out what exactly is different between a 97tj and a 2003tj

Only thing i know is different is the transfer case drop holes, which is no big deal at all. Can some of you help out here and let me know?

TY.

I fit my SuperLift kit for an 02 on my 03. I know the tc drop is a little different. Other than that it was pure bolt on. Everything fit just right. Maybe some bolts on the 97-02 were standard where 03+ were all metric. I think that's bout it.