Source for Pre-bent Transmission lines (75 360/727 Duster)??

I can't seem to find a source for pre-bent, ready to install transmission cooler lines.

Every website I've found only shows product listings up to 1973, after that nothing.

Is there a difference between the lines for a 1973 with a 340/727 and a 1975 Factory 360/727 car?

The lines rubbed a hole in one another which is why I'm looking at just purchasing a new set (in stainless steel preferably).