Good question jimmy. The centercaps for the lincoln navigator DO have the lincoln emblem on them. I'm still undecided whether I'll use the ford or the lincoln ones, but I'm pretty sure I'll use the Ford centercaps from my old rims.

 

I'm pretty sure Ford switched stud size b/c they were breaking left and right. Mine went from 12 to 14mm not too long after I bought the truck..

 

I put expo 16" on my 98, they have 255/70 16. I bought them at a place in Hurst Tx that sells factory takeoffs (mostly bought from conversion companies). They came with brand new(still have nipples on them) Wrangler RTS for just under $500, installed! The only thing is I have to use my old center (chrome star) because the expo centers don't fit the lugs right and I keep losing them. This place is called:

North TX Factory Takeoffs Inc.
800 W. Hurst
Hurst, Tx 76053
817-589-8874

 

I JUST sold my navigator wheels on ebay for $700

they are the ones in my sig.
they came with brand new $935 tires though so someone just got a good deal.

i just bought some Bofa 20's and cant wait to get em on.
i am getting 22's in a couple of months and probably going to slap the bofa's on my dads supercrew.