Installing Cherokee Leaf Springs
You will need to either;
Find rear bushings that will fit the stock Eagle hanger bolts or Find rear hangers that will fit the rear bushings and the stock Eagle hanger or Remove the rear hangers, remove the stock bolts, drill out for larger bolts and weld the bolt to the hanger so the bolt doesn't pivot in the hanger. The rear bolt used in the XJ spring is the same size as the front Eagle.
Here is a picture of the height after installation