how much would it cost to repair the main engine seal? on 1997 Subaru Impreza Outback

the car is leaking from what appears to be the back of the motor between the engine and where the flywheel and clutch are.

Asked by for the 1997 Subaru Impreza Outback
1 answer
Labor guide says 5 hours, seal $15 plus trans oil id it is drained during repair, and a few exhaust gaskets $18.