Just an FYI to hopefully help your sale....that may be an A999 lockup transmission. If you pull the converter out of it, and look at the input shaft, you can easily tell. If the first 1/2 to 3/4 inch of the input shaft is slick with no splines all the way to the tip, and is smaller than where the splines start, it is a lockup trans. They have the low first gear in them. Compare it to the other 904 you have for sale, and see if there's a difference. Good luck with the sale. :)
