What is the correct oil level in a TF727? (Warm and has been run through all gears - the corrrect procedure before checking the oil level)? The reason I ask is that I bought a 727 without the dip-stick and I am going to modify a GM stick and tube for the 727. I have no other vehichles to compare with. I have no standard dip-stick / dipstick to compare with. Someone told me the oil level should be at the same level as the pan gasket. Is this right? A measurable distance either from the gasket surface or a similar point would be OK.