Who knows Dodge Ram auto.Transmissions?

Ok fellas here's what i found it is the 46RE trans.,it is the front clutch seal that's bad.
And it's getting worse it will barely shift at all now and i pulled the pan back down today and there are more filings in the pan than normal so thinking it's slowly taking the clutches out of it!
So here are my options,rebuild it,buy and already rebuilt one with a 12 month 12K warranty or buy a remanufactured trans. with a 3year 100K mile warranty.