01 Tacoma Double Cab trd 110xxx miles. Took it into the shop after I lifted it to get and alignment, which is going back cause it is worse now . Besides the point they told me I have an oil leak had them pin point the leak. They said oil pan gasket was leaking. Got home changed the gasket twice and still leaking. It seems to only leak while I am driving. Sitting in the driveway, no oil. So the question is that after searching it seems that the 3.4 have problems with the rear mail seal. I dont have time to go it myself. What would an average price be for that type of work?