rear end fluid change
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Tuned
Joined: Oct 2004
Posts: 442
Likes: 7
From: reno nevada
rear end fluid change
Been getting ready to change on my 02. I have the Ford non posi. I read someplace that Ford says your not supposed to change the fluid? Does not sound right to me. Does any one make a gasket for this? Using rtv to seal this has allways seemed odd to me, i did it on my old Ranger but never liked it. Thanks Joe
Lead Driver
Joined: Sep 2003
Posts: 5,844
Likes: 6
From: Albuquerque
If you never have submerged the rear axle in water, then you shouldn't need to change it. However...if you feel better after a change...then go for it. I changed mine at about 100k...and I feel better about it.
Hope this link helps...about the best found...
Welcome to guzzle's Rear Differential Maintenance Web Page
biz
Hope this link helps...about the best found...
Welcome to guzzle's Rear Differential Maintenance Web Page
biz
Elder User
Joined: Oct 2011
Posts: 602
Likes: 0
From: Tacoma, WA
Here is a question, I have read that How To, but the one things I am not sure of is I am a fan of Mobile 1 products, but can you use the Mobile 1 differential fluid since it has the limited slip additive if you don't have limited slip?
Hotshot
Joined: Mar 2007
Posts: 10,101
Likes: 40
From: Pa
Been getting ready to change on my 02. I have the Ford non posi. I read someplace that Ford says your not supposed to change the fluid? Does not sound right to me. Does any one make a gasket for this? Using rtv to seal this has allways seemed odd to me, i did it on my old Ranger but never liked it. Thanks Joe
There is no gasket on the diff cover. Some sealants will leak oil. I recommend picking up some Permatex "Right Stuff" it is what I used on the 4 diffs I've done on SDs and it seals great and cures nice and firm like teh OE sealant. Its worth the extra $$$.
http://www.permatex.com/products/Aut...sket_Maker.htm
Elder User
Joined: Oct 2011
Posts: 602
Likes: 0
From: Tacoma, WA
Huh, that "Right Stuff" is actually pretty interesting looking, I will have to check that out!
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Cargo Master
Joined: Apr 2010
Posts: 3,274
Likes: 4
From: Seattle area
When I do mine next year, I'm going to install a Mag-Hytec cover. It has the gasket, takes more fluid and has drain plugs for future changes.
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Lead Driver
Joined: Sep 2003
Posts: 5,844
Likes: 6
From: Albuquerque
The idea behind not having a drain plug from FORD's standpoint...is so the gears can be inspected.
Found this gasket for the Sterling 10.5. I have no direct experience...but looks like good quality. IMHO...I actually prefer the no gasket option and use the RTV. Just a preference...because we don't really need to change the rear gear oil that often. In extreme use...maybe the gasket makes it easier.
Ford Sterling 10.25"/10.5" LubeLocker Gasket
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