I've got 2 pieces of tubing that are the same size as the journal, one for large journal, and one for the small journal. Lay the seal in the groove and rap it a couple times with a hammer to seat it in the groove, trim the ends and just a light dab of RTV on the rope ends. I've never used a socket or such to "roll a rope seal" into the groove......
There are Kent Moore tools to do this same operation, but in absence of the actual tool this is the same way the factory manual tells you to install them, tap them into the groove with a round sleeve.
Link to You Tube showing at 8:30 tapping the seal in with the sleeve in a Pontiac with the Kent Moore sleeve:
https://www.youtube.com/watch?v=1qXo9pW6nEo
This is the same way I've been doing them for decades, they nearly always seal following the factory procedure. Buick, Olds, and Pontiac all use the same type seal along with quite a few other brands of engines. Many industrial applications use this same type of packing to seal a rotating shaft against many fluids also. When I worked in maintenance in a few shops over the years you'll see this type of seal. That's where I first saw graphite impregnated rope is in an industrial setting.