Wheel pants question: I have a 1967 PA28-180C. I have the wheel pants for the plane but they never have been installed since I have owned it. I want to put them on but there is some hardware missing for the main gear pants. Piper lists two different support assemblies for the part that mounts to outer hub shaft. One is the plug-in type, piper part #63373-00. The other is the screw in type, piper part #66821-04. Is there a way to tell which one I need? Please send me a email with any info to emailcsb@yahoo.com. Thanks.