Doh! Bad news.

I checked the books and nothing crosses over. I was even wrong about the Cadillac. The Caddy wasn't six lug, it was 5 lug metric. Like you said, big five. I checked GM, Ford, Toyota, Chrysler products and anything else I could look at. From the 1960's to 2001. The 6 lug rotors are a flatter / taller rotor than the 5 lug versions.

So, I guess you are back to square one and will have to get the 6 lug kit.

Sorry, I tried. Nothing even came close. Not even oddball / foreign makes. Passenger or truck.