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post #1 of 24 (permalink) Old 12-14-2016, 02:06 AM Thread Starter
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Six Cylinder Diff

Im about to restore the diff in my car. Its a weird design with a big plate on the back. Do I drain the oil by loosening the plate? Refill through the axel tube?
I have a nine inch housing but unfortunately no axels for it or Id just fit the nine in it.
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post #2 of 24 (permalink) Old 12-14-2016, 02:37 AM
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Re: Six Cylinder Diff

Sounds like you have the WER rear end. I just looked at mine which I pulled out of my Galaxie years ago, but there is no filler plug. Perhaps you can unscrew the breather pipe connection and fill through that.

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post #3 of 24 (permalink) Old 12-14-2016, 03:05 AM Thread Starter
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Re: Six Cylinder Diff

Yeah I think if you know how much gear oil to add then through the axel tube would work. I cant see where there is a filler plug but it is c0vered in dirt so maybe after a clean up I ll see it. It is a big diff imagine it is strong enough for a 289.
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post #4 of 24 (permalink) Old 12-14-2016, 03:18 AM
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Re: Six Cylinder Diff

I had one of these diffs in my '70 Galaxie with a 460, and it never gave troubles. But I replaced it with a 9 inch just in case.
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1970 Galaxie 500 Sportsroof.
1963 1/2 Galaxie 500 Fastback.
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post #5 of 24 (permalink) Old 12-14-2016, 01:24 PM Thread Starter
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Re: Six Cylinder Diff

When I bought the 9 inch housing the dude told me the axels in the WER diff would fit in the 9 inch. Anyone know if this is right?
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post #6 of 24 (permalink) Old 12-14-2016, 03:52 PM
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Re: Six Cylinder Diff

Quote:
Originally Posted by KianJorry View Post
Im about to restore the diff in my car. Its a weird design with a big plate on the back. Do I drain the oil by loosening the plate? Refill through the axel tube?
I have a nine inch housing but unfortunately no axels for it or Id just fit the nine in it.
I have the WER axle with the 289 engine in my '67. Seems to be holding up well but I don't beat on it.

Loosen the cover to drain the old fluid then remove it and clean it out. Use a new gasket, don't use silicone in place of the gasket as you'll end up with a leak. At least that's what happened to me.

There is a filler plug on the left (drivers) side of the differential. Probably covered with crud as mine was but it is there. You might have to scrub a bit with a brush to get it cleaned up. Because of the location of the filler plug it's a PIA to refill. I stuck a piece of hose on the end of the gear oil bottle, tilted the bottle as much as I could and squeezed. If I remember right, it took two bottles or close to it until it started to flow from the filler plug hole. Made quite a mess, too.

Don't know if the axles would fit a 9".

1967 Galaxie 500 Convertible

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Last edited by 289Galaxie; 12-14-2016 at 03:59 PM.
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post #7 of 24 (permalink) Old 12-14-2016, 05:31 PM Thread Starter
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Re: Six Cylinder Diff

Thanks guys I just pulled the diff out an found the filler plug. Like you said its there just covered in crud. This is one big diff for a 6cyl . Looks more like a truck diff.
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post #8 of 24 (permalink) Old 12-14-2016, 06:23 PM
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Re: Six Cylinder Diff

Pretty sure the only ones with the 8-1/2" WER axle is the 240 six and the 289.

Doesn't look like you'll have any problem getting it filled back up! Try it while its on the car, though. Not much fun.

1967 Galaxie 500 Convertible

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post #9 of 24 (permalink) Old 12-14-2016, 06:45 PM Thread Starter
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Re: Six Cylinder Diff

I didnt know they used this diff in the 289.
My 67 is the plain jane base model. Was 240 3sp manual on the column.
Strange body shape Ive googled it an cant find a pic the same as mine.
Seems not to many bought the bog stock model.
I ll be filling the diff before it goes back in LoL
Guess it takes standard gear oil?
I will post a few pics once its painted.
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post #10 of 24 (permalink) Old 12-14-2016, 11:20 PM Thread Starter
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Re: Six Cylinder Diff

Pulled the cover from the diff and it isnt pretty in there. Very heavy layer of gunk sitting in the bottom of the housing. Whats the best way to wash it out?
I have never drove this car so cant be sure the diff is good. The car was one owner when I got it and hadnt been on the road since 1980 when the engine blew up. It was parked in a shed in LA till 2010 when i bought it.
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post #11 of 24 (permalink) Old 12-15-2016, 04:31 PM
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Re: Six Cylinder Diff

Quote:
Originally Posted by KianJorry View Post
I didnt know they used this diff in the 289.
My 67 is the plain jane base model. Was 240 3sp manual on the column.
Strange body shape Ive googled it an cant find a pic the same as mine.
Seems not to many bought the bog stock model.
I ll be filling the diff before it goes back in LoL
Guess it takes standard gear oil?
I will post a few pics once its painted.
My service manual states that our WER axles take 4 pints of lubricant. I used 80W90 but I think some people like to use something a little heavier.

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post #12 of 24 (permalink) Old 12-16-2016, 01:10 AM Thread Starter
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Re: Six Cylinder Diff

Thanks I ll make sure its refilled with the right amount of oil when the time comes. All the crud in the housing is now gone. I decided to degrease it an wash it out. I ll spray it liberally with WD40 when its dry. Next I ll clean the diff down an spray it in 2 pack saturn black.
Done the nine inch a few years back the same way which is a real waste but no good worrying about it now.
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post #13 of 24 (permalink) Old 12-16-2016, 04:08 PM Thread Starter
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Re: Six Cylinder Diff

Just dragged the 9 inch housing out to compare to the WER diff. I very much doubt anything on the WER fits the 9. Since the 9 has the flange in a different position for the brake backing plate I would say they dont fit. I ve read the WER diff axles are held in with C clips so pretty sure these are not interchangable. Bottom line the 9 housing is useless without hunting down the axles an brake backing plates plus what ever else I need for it.
Think I ll wrap the 9 housing back up an put it back in storage.
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post #14 of 24 (permalink) Old 12-16-2016, 04:44 PM
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Re: Six Cylinder Diff

I'm almost certain that the brakes are the same, but nothing else.

2003 Falcon BA XR8 Ute.
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1970 Galaxie 500 Sportsroof.
1963 1/2 Galaxie 500 Fastback.
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post #15 of 24 (permalink) Old 12-16-2016, 08:27 PM Thread Starter
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Re: Six Cylinder Diff

After removing the c clips on the axles can I just smack the axles out?
Will the axle bearing be on the axle or in the axle tube?
I dont want to cause more pain then its worth by removing the axles an ruining the bearings. Figure if I pull the axles I will replace the seals.
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