Yea it's never easy trying to run the race pieces. Let us know if you are able to source the 336 with the correct offset and carrier bolt configuration. I'm still considering getting the 336 and swapping the carrier as I have a set of 320 T-Drives and shelving the 3 hole carriers but that's 1500.00 bucks for 2 pieces of steel. If you have a set of carriers from the standard 320 T-Drive you can rather easily have a set of 336 rotors laser cut and precision ground for a whole lot less than 1500.00. Just a thought.