Thank you all for the replies! Jerry, I would definitely have to agree with you; I have one on it right now but some kid thought it would be funny to punch it and break it.
So, just a universal one will fit STs?
I have a 2001 sport trac and when I bought it, it had the original battery in it. When you go to start it no mater the length of time it has been off, sometime you have to hold the key in alot longer to get it to start up. Some times it doesn't start the first time, but the second time you try...