71 A body sport mirror help...

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This is what your car would take.

The style below is 73 to 76 a-body. That is a nut, But you still need the clip. On a 73 and newer the nut goes on before the door panel and the clip is still used. The chrome nut is for cosmetic on a 73 it does not hold the control. Here are some 72 and earlier. There is also a holder that goes on the door on all Dusters or demons to hold the cable in the front of the door so the window doesn't the glass. In the second picture you can see the difference the bottom one is 73 and newer. So it looks like you need the chrome nut and the clip you have the wrong chrome nut for a 71. There is also three different length cables.

Left is 73 up. center is 70-72. the right is a 70 wing window Dart or Roadrunner. The hole in the door for the cable holder is under the top seal.

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