hello again ! i had the 76 cutlass in the shop today for oil change and nys inspection was told by the service manager i may have a rear main seal leak and or a oil pan gasket leak .it usually only drips a few drops overnight in the garage so not a huge concern ,but was wondering if anyone has an idea of the labor involved in replacing both ? its a reputable shop with a labor rate of about 80 per hour . of all the 350 rockets ive owed i rarely had a leaky rear main seal ,so ive never changed one myself .thanks