I start with an apology for my laziness. I could go out to the shop, take off a lug nut, measure it and answer my own question, but it's raining hard, I'm tired and my very beautiful wife just poured some wine.

I want to replace my stock lug nuts with better solid lug nuts.

So, I ask you all...what are the dimensions for 2004 XJR lug nuts with Sepangs (if that matters).
Or better yet, what cars are compatible that I can just go to eBay and buy a set?

 

I switched to these. You will need to carry a different socket as the oem lug wrench wont fit these...

 

Perfect! That's what I needed!

 

Exactly what I found, Toyota truck was a great way to search for the lugs then confirm the thread and length.

Rye Jag