Looking for a rubber part...
 

I'm looking for a little rubber stopper/bumper for the 4x4 shift lever mechanism. Looks like this:

https://farm8.staticflickr.com/7906/...fcd30619_h.jpg

And it's meant to sit here between these two components to keep the shifter from flopping around:

https://farm5.staticflickr.com/4910/...b7ce45e1_h.jpg

No clue what Ford, or anyone for that matter, calls this. Don't think it's available new anymore, so I guess I'm looking for a DIY solution to this puzzle.

Thanks!