changing rear main seal on a 223

[krwilson5]

I need some advice on changing the rear main seal in the family 57 wagon. The engine is a 223 six cylinder and it is out of the car at the moment. I assume that it has the old rope seal and I imagine that these can be a bit tricky. I have seen Chinese puzzle like tools to help with the installation/removal, but have no idea if this is the best approach. At least the engine will be upside down instead of me. Any suggestions?