a place to put rear end lube in and ck the level. I have a 02 F-150 5.4L w/ a 9.75" rear end. It's the FX4 model with the towing package. I looked for the fill plug that the book said it would be but it's not there. I looked all over the thing the best I could while under the truck not up in the air. ??????? where????????? is it???????

 

well i beleive you have to park the truck flat leave it for about 10 min so the oil settles then there should be a plug unsccrew it it oil runs out you are good if it dosen't you might be low

hopes this helps and i beleive that'ss how you do it

 

Thanx. It will take me that long to change into work clothes and get under the truck. It's 36 and a little windy so I'll be in the garage with the door shut.