Posted by a reviewer on Amazon

I use this on a 2014 pro master van 3500 it doesn’t come with a dipstick for the transmission so i bought this one you would have to know what level you’re starting with to know if you’ve got the correct level in the transmission meaning this thing comes with a bunch of numbers on it so you would have to start with the transmission that is already filled to the correct level note that level and then keep an eye on it in the future and it doesn’t fit all the way in the bottom of the pan and only goes a certain distance and so its completely longer than what you’ll ever use or need and it doesn’t come with any instructions so you have to figure it out yourself but it’ll work