Hi Jack. Unless you get extremely lucky and find a NOS (New Old Stock) unit sitting on a shelf somewhere and are willing to pay a BUNCH of money for it you are not going to find a NEW C4. Even if you did find a new one on that proverbial shelf, chances are it will probably have been sitting for so long that it will need to be dissembled to replace dried out seals and gaskets.

Any C4 you get is going to be a rebuilt even from companies like B&M, TCI etc.

You might want to look at the comments on this thread from a couple of days ago.

Suggestion for 4l60e

It's got some pretty good discussion of transmission sources /services.




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