I have a leaking Rear main seal on my TR, I was told by a Mechanic that if I was to replace the seal with a neoprene Fel- Pro Gasket it will still leak no matter what and the only way to fix the leak is a rebuilt of the motor.I refuse to rebuild my motor cause it's not hurt at all..Another Buick friendly Mech told me Neoprene was the right choice and can be replaced for around $250 bucks.I don't like leaks so Ima replace it. 
