Lockup to non-lockup question(s)

Hi all, zero transmission knowledge here so I'm gonna ask a few transmission questions. Our 67 cuda currently has the orig 904 that would be non lockup. I bought a spare "built/rebuilt" 904 that is lockup.
What is required to use in our cuda? I believe the nonlockup came with a torque converter as I have one of those that has "CP112 lockup" written in marker on it.
Thanks
Steve

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Author: admin