Rubber hoses?

My 65 Dart was like that. The steel trans cooler lines were cut at the bellhousing w/ 6" stubs of rubber hose added. I expect some bozo did that when removing the tranny. I ran new 5/16" steel tubing that I bent myself (not available aftermarket for my year, yours could be). I bought a ~20 ft coil off ebay and used for fuel also. It took a lot of back & forth to fit them. Best is to get a stiff wire and bend to shape by hand, then use as a template to bend your tubes. I bypassed the radiator and use a trans cooler in front. Many say to not do that, but it works fine on another car and I don't like the risk of water in trans oil or vice versa, plus it makes the radiator much easier to remove.