Hello all. I have an issue with my 2000 Contour 4-Cyl ATX doing the 1-2 Bang shift. I did a search on here and found out that I need to change my TSS to the new revised part. I see the part# is 1S7Z-7M101-KA, but when I went to my local Ford Dealer they said the latest part # is 6L8Z-7H103-AA. They also said both part#'s are available but recommend the latest part # saying that it was revised again in 2006 and the other is an older revision. So should I go with the newer part# I would assume that is what I should go with. What do you think?