I have got my mustang on jackstands about to change the diff fluid when i notice before i start anything that there is no fill plug?? It has a 93 cobra rear end on it if it makes any difference. So how do i fill it back up when i,m done? O and another question how much fluid needs to go back in? Thanks!!

 

There is. It's a 3/8" drive plug located on the driver side in front.

 

it's on the other side, it's not on the cover on then. check near the driveshaft on the passenger side i believe it's on. Just fill it up until fluid starts coming back out of the hole, probably around 2.5l or so.

 

on top...you got to stick your head up in there.

 

Ok i see it it is on the drivers side near the drive shaft, it was just covered in dirt and crap making it hard to see, thanks for the quick replies, all of my questions are always answered by u guys!!