I hate the Ford lugnuts. I change them out to the deep acorn style or the regular 7/8" lugnuts.
What he said...I have a Dana 70 and had the exact same problem. I finally shelled out the money for replacement lug nuts that completely cover up the lug studs, so the threads can't get dirty or rusted...made life MUCH easierI disagree about the sterling only statement, the 84 I had with a dana used the same crappy lugnut as the sterling rearends. The other problem I have with the ford lugnuts is that they weren't threaded all the way to the end, leaving a cavity for sand and dirt to get into, so that you could wreck the threads on the stud as you removed the nut.