The c6 is just a 3 speed right? Somone told me that since all tcases are made by mostly the same 2 companies, they all line into the transmission the same throught the big 3. Eg a dodge tcase in a f350. Is this true? And somone is trying to sell me a 2wd tranny saying a tcase can be hooked up to it... tailstock has the o/d unit in it doesnt it? Thanks Matt