First time's a charm. When you install diffs every day, you get a feel for the number of shims it will take to get the clearances dead-on the first time. A double-check with a dial indicator revealed eight thousandths clearance. It doesn't get much better than that. Note the notch in the bearing cap for the air line. Due to the way the ring-and-pinion lined up in the housing, Eric needed only to notch the cap instead of having to drill a hole through it. Also note how much room there is between the 60-size housing and the 44-size carrier inside a Dana 50 axle.