Yes. It can be filled through the shifter, just make sure you put the right amount in. Also, go to ford and get the friction modifier. It's like 4 bucks, you will need 2 bottles because the tranny calls for 5 ounces, and the fluid comes in 4 ounce bottles...GO figure. I went with Mobil One Synthetic ATF, some say redline works well too. If i recall correctly the tranny holds 4.1US QTs. You need ATF in the 5-speeds. Any synthetic ATF SHOULD work.
Aaron
Aaron