2003 Ford F-150, 5.4 v-8, no tow package.
vin 1FTRW08L33KD93134

My tranny line is leaking pretty good. I'm having a hard time determining which line to replace. I also need to know which tranny I have. Can someone help with this? I attached a pic. Its located behind the radiator.
Thanks

 

should be 4r70w

 

03 should be 4R70W, unless you got a super rare, early 2003 w/ 7700 payload, built with the 4R100

 

TRANS code on the door jamb sticker is "W" if it's a 4R70W, "E" if it's a 4R100.