Rear Diff Fluid Capacity for Dana 44
Thread Starter
Instructor
Joined: Mar 2005
Posts: 130
Likes: 0
From: Shreveport Louisiana
Rear Diff Fluid Capacity for Dana 44
I just Changed the Gear in my 1988 w/Dana 44 (3.07 to 3.45). I checked my Haynes/Chiltons and all I could find was the weight it uses(80W90), but not how many ounces it takes to fill it. I just hate (really, really dislike) leaving in the middle of a project, just to get more stuff, if I didn't get enough on the first trip. Gas ain't cheap now a days to go back and forth to the parts store.
Race Director
Joined: Sep 2000
Posts: 17,298
Likes: 33
From: The Top of Utah
My factory service manual says my diff holds approx 4 pints. You can check your's to see if it is different. It would be no less than whatever you drained out of it. I would think if you had 5 pints on hand, that you'd be fine.
RACE ON!!!
PS. Don't forget the two bottles of GM friction modifier.
RACE ON!!!
PS. Don't forget the two bottles of GM friction modifier.
Last edited by CFI-EFI; Jan 21, 2006 at 11:59 AM. Reason: PS.
Race Director
Joined: Apr 2000
Posts: 15,344
Likes: 4,009
From: Texas
Originally Posted by Supernatural
I just Changed the Gear in my 1988 w/Dana 44 (3.07 to 3.45). I checked my Haynes/Chiltons and all I could find was the weight it uses(80W90), but not how many ounces it takes to fill it. I just hate (really, really dislike) leaving in the middle of a project, just to get more stuff, if I didn't get enough on the first trip. Gas ain't cheap now a days to go back and forth to the parts store.
Capacity is 1.5qts. I just had another set of gears put in the pumpkin of mine and I filled it with fluid Thursday night. A differential that has residual fluid left in it will take ~1.25 qts, or 5 pts as CFI mentioned.
Buy 2 qts of lube and fill until it dribbles out the fill hole (btw, put the friction modifier in first). Make sure the car is level while you're filling it.
Lastly....ditch the Haynes and buy a real service manual. It's money well spent if you intend to do your own work.
Racer
Joined: May 2004
Posts: 318
Likes: 0
From: Kissimmee FL
First
Make sure you put the 2 containers of posi additive in first before you refill with the rest of your fluid....Also take a look at the RED LINE rear fluid as it also has additional posi additives which will help and it's synthetic which keeps the tepm down..
Pro
Joined: May 2002
Posts: 541
Likes: 2
From: Kalama WA
Would the dana 36 have the same fluid requirements ? My helm's manual says 4 ounces of posi additive. I plan on draining (with fluid pump) and refilling.
Edit: I found the answer in the FAQ's.
Edit: I found the answer in the FAQ's.
Last edited by kize; Jan 22, 2006 at 11:34 AM.
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