Headlamp Adjustment Bucket Bearings. Depending on year, Auto Krafters part numbers in the catalogue are either AK1011 or AK1012. The Ford engineering number is 13B160 if you're looking for NOS. I haven't had the headlights out of my Grabber, but I thought the ones in my old 77 4-door were long and flat with a pin that clipped into it. It sounds like they changed a couple of times over the years, likely when the adjusters switched from bottom to top, etc.
Paul, They are button shape for the early years. Don't know when they changed to the strip style. Out of town right now, otherwise I could pass on the part number. Micah
Here are some on eBay (I knew I would see them again): http://www.ebay.com/itm/231370118906?_trksid=p2060353.m1438.l2649&ssPageName=STRK:MEBIDX:IT