Not ready to swap out for newer transmission lines? Lucky for us, the TH350 lines are a direct fit to our new 200-4R. We secured them into their new location on the 200-4R with a 1/2-inch flare nut wrench. Using the old lines with the rubber hose (inlet/return) will allow us to at least get the car back up and running again before we bend our own custom lines at a later time. Note: Transmission fluid is highly flammable under pressure (up to 250 psi) and rubber transmission hose lines are not advised for long-term use.