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The transmission cooler line to the radiator on my '50 Super Deluxe sprung a leak this evening! :( Any ideas where I could get new lines anybody?

You have to make them yourself. Any local parts store will have the line, you bend and cut them to suit, and then flare the ends for the connectors.

This is exactly the same as bending up brake or fuel hard-lines.

I agree with BigKev, it is a simple matter to just make a new one. But hydraulic pressures to the cooler are pretty low; if the rest of the line is in good condition you could just cut out the damaged section and with the appropriate fittings and a short length of new tubing, fit in a new section. Some might suggest you could also replace the damaged section with appropriate rubber hose compatible with warm ATF and properly done that would work fine too, but I'd personally feel more comfortable with steel lines.

Oh lausey!! The lines currently in the car are rubber coated, does the line come like that?? My brother-in-law does the mechanical repairs on my car and I don't know if he is up for that!

Rubber coated? Are you sure they have just not been sprayed with undercoating?

Yes, at least the top line had a black rubber coating on it, I didn't look at the lower line. It is for sure not undercoating. The lines run along the frame on the driver's side of the car and enter the radiator near the bottom on the driver's side also.

Just curious which line and where. There were several bulletins mentioning changes to the lines and fittings to eliminate noise and stress, eliminating of check valve because of sticking with the excess pressure causing breaks and other various things having to do with the tubes. The radiator cooler was eliminated entirely because of breakage issues and replaced by an external cooler kit.

They are on the driver's side lower area (frame) and come from the transmission and go to the lower radiator same side. The leaking one is seeping red fluid down the frame and into the cradle below the radiator.

As long as it's not coming out of one of the radiator fittings and running down, perhaps tubes just vibrated or rubbed against the frame. There was a revised clamping done with insulators in strategic locations although that was for noise. The rubber over the lines probably won't be found but maybe looks could be duplicated by some rubber hose over the tubing or maybe the fabric electric loom would look reasonably close. There is a product -- Plastigrip -- that could be painted on which might work and look OK but also might be too vinyl looking.

That is a good idea about the rubber hose and OD, I agree about the hose being steel too. The leak appears to be where a clamp type thing holds the line in place. I think it just eventually rubbed through, but what do I know! It is certain that it is not leaking from the radiator connecting parts.