napa or checker usually have the ones for a 722.3xx. just make sure it has the proper gasket before you drain it all. Checker sold my buddy a kit with a paper gasket, instead of the rubber one.

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1984 123.193 372,xxx miles, room for Seven.

1999 Dodge Durango Cummins 4BTAA 47RE 5k lb 4x4 getting 25+mpgs, room for Seven.