I have been through this but the guy at Carquest came up with the right filter for me. You should measure the diameter of the inside tube, the diameter of the case and the height from where the bottom taper ends to the top. It is important the the filter inside tube seals are the exact size of your tube. You need the an OD of the filter that will fit in the case and a height that uses most of the can. Do a Google search for a filter site with cross references and look at the specs given. You can pic a filter from that.
My filter is a Carquest 85100.
