Quote Originally Posted by Eckert View Post
you could do both of those for well under the $300 difference.
you forgot new drivelines w/ the d300 but that may be a moot point since he is going to won tons

i would go with the 231/300 doubler. i don't like 4:1 gearsets in the 300's i think they are one of the main reasons you see cracked casses on 300s