Oil change 4l60e - need help - firsttimer

[64Chevelle]

Buy a sump pan that comes with a drain plug as well there only a few $ ,chromed as well.

My pan is ~6mm or ~2 1/4" in height and there is definately not room for one that holds more fluid since it would be higher and ground clearance would be a huge issue in my case (I've got issues in that department already). Unless there are some pans that holds more fluid w/o the added height, but I doubt it. Seems I've got to get a trans cooler instead.