How much will it cost to get the rear end fixed??? on 1990 Mercury Grand Marquis

My car shut off today..I started it back up then I put the car in drive!It felt like someone hit me from the back...Then it started to grind very loud when ever I put it in drive.The car starts but will not move forward at all...So how much will it cost to have it fixed????

Asked by for the 1990 Mercury Grand Marquis
Tow to a qualified shop, have inspected before can give accurate estimate.