rear main seal on 2001 Ford Taurus

I need to replace a leaking rear main seal. How hqrd will this be? How expensive generally will a shop charge for this?

2 answers
This is a 8.5 to 9 hour job according to my book, so your probably looking at about $800 to $1000 depending on who does the work http://repairpal.com/directory?address=62341&car_brand_names=Ford
where is the rear maim seal?