[CC5S]

Make sure you look into the 5 (manual) from Tremec. The new Tremecs handle 500 or 600 ft/lb or torque.

These are what you should look at:

Tremec Ford TKO-600 RR - .82 5th (Part #4617)
Tremec Ford TKO-600 - .64 5th (Part #5008)

Tremec also sells a 6-Speed


Thanks