I'm having what I can only imagine is the same dilemma many disco owners have had. The lugs on the new (to me) disco were torn up and have resulted in many of the lugs needing to be replaced. I have 5 OEM coming in today so I can get the wheels back on after a brake job, but I have just found these ( ) on amazon for a good price. I like the idea of switching to a solid lug so the caps are no longer an issue. I'm a bit concerned about these because they seem to be smaller (22mm vs 27mm) and am wondering if anyone has used these. I've seen a few threads with people buying solid lugs off ebay, so I'm going to look there as well.

 

I have solid lugs, but they're the same size as the capped originals. They work just fine, and no more hassles with the original sheaths. They're plated, so if you use them too much (or, really, if you use them at all) you will break through the coating and they will start to oxidise a bit.