[ss3011]

The reason for a factory deep pan is to provide a greater volume for the oil to expand in to . The factory dipstick is re-calibrated so the fill volume is the same . This is done mostly for trucks, where the trans temperature runs hotter . If you put a deep pan on the trans, and use a dipstick for a shallow pan , you will have extra oil in the trans and when it gets hot , it will expand up into the rotating parts . This will cause the oil to get whipped up into what will almost look like a milkshake , and cause all kinds of problems , like oil to come out the breather . If you run a deeper pan it there to get the oil away from the rotating parts .