I don't know if he's referring to Coker or Cooper. Coker is a specialty tire manufacturer for antique vehicles. They are way overpriced in my opinion. I have not heard any reports on how they hold up at highway speeds.

I am running 215/85 R16LT B F Goodrich T/A Commercials on my '54 Suburban and have put over 20,000 miles at speeds sometimes over 75. They are holding up nicely.

"It's just a phase. He'll grow out of it." Mama, 1964

1956 Chevy 1/2-ton 3100
1953 Chevy 6100 "The Yard dog"
1954 GMC Suburban Now with a new proud owner.