Wire loom retainers. You can get a similar (not exact shape & color) at most autobody supply shops or from companies like Auveco. Also can find them on eBay:
http://pages.ebay.com/link/?nav=item.view&alt=web&id=122151797649
Ford still uses this style of clip today
Here is a link to AMK Products
http://amkproducts.com/bulk3.asp?part=B-10976
Thanks peeps!
That is only half of the clip though. There is also the portion wrapped inside the harness wrap, that has two little metal wires to attach it to the fender clip portion.
Mike i had no idea that the clip had metal wires. You can learn something new here everyday.
Steven
Ummmm…there are at least 3 versions of that clip. Notice on the first photo that there is a slot to accept a wire on each end, which holds the clip in place. Wrapping tape was used to keep it from sliding. On the second photo, the wire clips (without the slot for the wires) attaches the clip to a plastic backing line that runs throughout a large section of the harness, and is wrapped by tape. A third variation has a round hole where the two prongs are to keep it in place where a small rod accepts the cylindrical hole; this is typically found on a tail-light harness where the clip fastens to metal above the wheel well but back of the main arch.
Just position the retainer properly and tightly wrap it to the harness with a QUALITY electrical tape. It’ll look and work right. Don’t overthink it.