[camachinist]

IIRC, the trans cooler lines are 5/16"...I usually just use 300 psi neoprene hose from the shop. Using a hose which can handle the temps, vibration and pressure is the important thing. Pressure won't be that much but temps and vibration can take their toll.

I recall someone posting a source for the Gano filters recently...you might want to search for it.