The hard lines at the end of the tranny and the radiator are both held in with those clips. Quick connect fittings on both ends. But be warned, when you get them disconnected, there's going to be a little transmission fluid coming out.

Once you get them disconnected, if you put the little clips back in at the fittings on the radiator and transmission, all you'll have to do to re-connect them is just push the lines back in until you hear them click and you'll be done.

If the lines are leaking at the point where it turns from a hard line to rubber line, you can cut the soft section out with a tube cutter, then use a double flaring tool to flare the ends of the hard line and install a new rubber line and then use hose clamps to secure it.

But by NO MEANS just cut out the existing rubber line and slip on new rubber line our you'll just be asking for trouble as the pressure could well force the rubber line off even with a hose clamp.

The double flaring tool creates, well, a flare on the end of the hard line that gives the rubber line a little something to bite into and when you clamp it, its much harder for that line to come off by any other means other than you intentionally taking it off.

Now the quick and easy way to do this would be to contact Ed Morad as Damojo suggested and just get a factory replacement line from him and you'll be good to go.