Transmission seal on 1991 Mercury Sable

Transmission oil is leaking from one of the seals. I can't pinpoint it cause I don't have a jack. My question is "what is the general price to replace a seal on the automatic transmission?"

Asked by for the 1991 Mercury Sable
Its about an 8.5 hour job to remove the transmission if the front transmission seal has to be replaced. If it is an axle seal that needs to be replaced its probably a 1 to 1.2 hour labor.
Thank you very much! That helped me significantly, let's hope it's the rear!