JohnDow JD-2436 Big Mouth Transmission Drain PanJohnDow JD 2436 Big Mouth Transmission Drain Pan The JohnDow JD 2436 Big Mouth Transmission Drain Pan is designed for use with large transmissions drain pans. Have you ever raised a vehicle up on a car lift and rolled your under hoist oil drain under it and then dropped the transmission pan, and had the fluid leak all over the place? You're not alone. Most of our customers have had the same thing happen to them. What to do? Until now, you had to