how hard is it to change the rearmain seal on this car and what size is it i saw that there was 2 diff sizes

 

Engine uses a one piece rear seal, which means the transmission needs to be removed in order to replace it. Make sure the leak is not coming from somewhere else before going for the rear seal. Take a good look at the oil pump drive gear, where the distributor used to go,as it is a good source of oil leaks.