RichPin shows how to identify a rear axle on a Jeep Grand Cherokee to determine the correct replacement part. The first thing to do is to identify the axle by cleaning the fill plug on the back cover. Look at the inscription of the plug to find out the style of the rear end. In this example, Rich has a "Dana" style rear end. To determine if it is a 35 or 44 Dana, look at the web area to the right of the plug to locate the number. The two steps outlined in this video allow you to identify the rear end of your jeep, should you ever need to replace it.