LF: Transmission for Ford Crown Vic '98

My trani is starting to slip big time!!!
Anyone know where I can find a trani for a 98 crown vic 4.6l V8?
It has the police pack p71...I don't know if that makes a difference!

Let me know...Anyone who can help!

Thanx in advance

-Sean

this is probably the ONLY time i'd suggest rebuild over OEM used..
I would never trust a used police pack tranny, especially one already out of the car and you cant test it..