[Mr70]

Heard critics say Steves' lugseats prevent the lugnut from biting into the lug hole, and thus it slowly loosens over time,especially if you're a spirited driver. [img]<<GRAEMLIN_URL>>/burnout.gif[/img]
Bill,don't go chrome,(i.e. Gorilla Nuts),go stainless steel capped like the original one was.
I found this very close convexed top,stainless capped 7/16-20 lug,yet slightly taller with a wider seat,while tooling around @ McMaster-Carr a few years ago.
It works extremely well on SS wheels with oversized holes,and really isn't noticeable unless you're parked next to a car with the more proper smaller lugnut on his Magnum 500 wheel.
Here are some photos to compare it to.
Very last photo is it alone on top row,followed by three later replacement #414188's on far left second row,follwed by eight EXTREMELY RARE &amp; SOUGHT AFTER lugs that the assembly line used 46/47 years ago.
If anyones interested in this new taller/wider seat lugnut,let me know &amp; I'll guide you to it today.
McMaster-Carr stopped carrying it,but I found a second retailer who does for almost a buck a piece,and it's not GM,who charges $6 ea.