Oil change on rear differensial.

Hi.... I want to change oil on my rear differensial, and need some advice. There are no drain plug and no filler plug on the back cover of the diff. Where is
it? It must at least be a filler plug I suppose. It is marked Axle 19 on the ID markplate on the drivers door. Which axle does the car have? 1988 E150 302 EFI Tor Elling.
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
to drain, remove the cover.

Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
Many Ford differentials have the fill plug on the front side - kind of hard to see, but it's there. Look for a threaded hole. The plug has a square 3/8" opening, which may be filled with gunk. On my old LTD there is anti-vibration weight attached to the diff, which gets in the way and needs to be removed.

Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
Tor Elling Rustad wrote:

the rear cover off the rear end, then put a suction tool in the opening and suck up all the oil that is below the line of the cover plate... then pump some more rear end oil into the rear end up to where the bottom of the cover plate fits it... the put the cover plate back on.... or you can do it your self if you have a pump/suction removal tool to get the old oil out....
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

Motorsforum.com is a website by car enthusiasts for car enthusiasts. It is not affiliated with any of the car or spare part manufacturers or car dealers discussed here. All logos and trade names are the property of their respective owners.