The original 5 speed manual in my 2013 Fiesta never liked to downshift into 1st. I had to be at a crawl below 5mph. I have read of several complaints from other people. I just installed a used IB/5 Transmission. It has no problem shifting into 1st, even from 10MPH. Very smooth. I don't know if this IB/5 came from a Fiesta, or something else. That transmission was put in the Focus and other cars. Was it only the Fiesta that had this issue? If so did it start at a certain year model?