Exactly what silvermax said. Info on your model would be in the Grand Cherokee WK2 area of the platform discussions. Under the WK2/ZJ/Wk/whatever will be what years it covers.
Any questions at all feel free to PM me or post up some questions on the board. Girls are the minority on car forums but the boys here are usually pretty darn helpful when you have a question. Welcome to the forum and congrats on the new Jeep!