SixEye,

Thanks for the feedback. Looks my my Disco will be sporting a set of Kumho's soon. As soon, that is, as I get it back from the repair shop...hit Bambi and ruined the front bumper.

 

With radials you cannot change the way that the tire spins, meaning you can only rotate tires front to back and not side to side. Because of this if you rotate your spare in you will essentially be rotating three tires on one side of the truck and 2 on the other. Changing the rotational direction on bias ply tires was fine, but doing so on radials with shorten the life of the tire and weaken the side walls.