Another week, another job
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Another week, another job
Hey all. I'm going to replace a leaky gasket on my 1983 F-250's rear differential. I wanted to know what fluid types are recommended, and how you go about refilling a Dana differential that doesn't have the drain or check plug. I'm I just not seeing it? Or is there some special trick to filling it once I've drained the old stuff?
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From: Virginia
If you have a dana axle, you should have a fill plug midway up on the rear cover. If a Ford/Sterling was swapped in, the fill plug is midway on the front casting on the driver's side of the differential.
Do you have the large piece with all the little bolts on it sticking out of the middle of the rear wheels? If yes, you have a full floating axle that was installed in the f250HD's. If not, you have the lighter duty f250 with the semi-float axle.
When you are back there look for a tag under one of the bolts. It can tell you what ratio you have. Or just carefully take your fingernail and scrape the paint off the door tag. If it's a rattle can job, it probably didn't stick that well.
Do you have the large piece with all the little bolts on it sticking out of the middle of the rear wheels? If yes, you have a full floating axle that was installed in the f250HD's. If not, you have the lighter duty f250 with the semi-float axle.
When you are back there look for a tag under one of the bolts. It can tell you what ratio you have. Or just carefully take your fingernail and scrape the paint off the door tag. If it's a rattle can job, it probably didn't stick that well.
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That's my differential, and for the life of me I can't find any drain or filler plugs anywhere.. This truck has been heavily modified over the years, so for all I know this isn't the original setup.
pedant
Joined: Jan 2008
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From: EXTREME southwest CT
Definitely Sterling.
Look for a plug on the front drivers side hiding behind that sway bar.
Take a picture of the end of the axle (under the hubcap)
Do those hubs stick way out?
On the rear cover, one of those bolts should be a stud with a metal tag nutted down.
I can hardly see on my cracked phone screen.
Look for a plug on the front drivers side hiding behind that sway bar.
Take a picture of the end of the axle (under the hubcap)
Do those hubs stick way out?
On the rear cover, one of those bolts should be a stud with a metal tag nutted down.
I can hardly see on my cracked phone screen.
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