Well I have the Knuckle mounted to the Spindle. Every thing seams to fit well now. The Lower ball joint had top have a little machine work to sit low enought to get the snap ring on. This Might fix the problem Byrd Had with the U-joint hitting the Lower Joint. If anyone is interested in having knuckles machined to fit You can PM me and I can have this Set up duplicated. I would need a set of Upper and Lower Ball Joints for an Explorer and just the knuckles.