Q: 2002 celica/229,000 miles leaked oil, mechanic to drop transmission & chg seal on 2002 Toyota Celica

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car just leaked at least 2 qts of oil from engine at once, when I turned it off in driveway,mechanic said that he has to drop transmission and replace seal. He said it will cost @ least $700-800.
(2) Answers
if he is right about the rear main, yes that is accurate. with the mileage you have, i would not be surprised if the rear main bearing is bad causing the seal to leak. ask him to check that as well.