you will need a retaining plate. There is a dealer part number for one. I don't have it off hand but a quick google will get it for you. You may want to get a ZJ proportioning valve (or do the valve bypass by pulling the center out, I did that and works fine). Parking brake lines will either need a U-clap or get new lines. I did the new lines route. You can always leave the parking brakes off if you want as well.
You will also need longer bolts/studs for the retaining plate as well as wheel studs if you use aluminum wheels.
...I googled for you....