Changing differential and transfer case oil after deep water crossing. - Ford Powerstroke Diesel Forum
Powerstroke.org is the premier Diesel Truck Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 07-29-2013, 07:10 PM
Compression Ignition Addict
 

Join Date: Jun 2012
Location: Charlottesville
Posts: 160
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Changing differential and transfer case oil after deep water crossing.

So after having to ford through some deep water (36-38") I decided that I must've gotten water where it shouldn't be, as there was about 2-3" of water in the cab after finishing the river crossing. There would've been a lot more inside if I had stopped. Point is, water got in some of the breather tubes. I would've changed fluids right then, but this was WAY backwoods. I had to drive 60 miles back home. I didn't think there was a big problem until doing some reading. I planned to change fluids when I had a day off. I noticed a vibration the other day when on the throttle at all; it disappears when I let the truck coast. All fluids must get changed!

Upon draining the transfer case, the fluid looked like a strawberry milkshake. Milky pink, with chunks (water droplets). Lots of emulsified water in there. I drained it all out, and put in new Dextron ATF fluid, as per Ford's specs. I went for a drive to get the differential oil warm again, and still have the vibration.

I just drained the rear case, which was nasty opaque sludge, but no apparent water. I did notice a bit of rust on one side of the gears, but the truck has 399,000 mi on the odometer. it's not a new truck. There's no way the rust is new. The vibration is. There is however a fair bit of wear apparent in the gears. Will post pics later.

I loosened the tranny drain plug, and got perfectly clear, like-new ATF fluid out of it. I don't even know if it has a breather tube or not , but I'm just going to top it off. There is no sign of any water at all, and it was rebuilt last summer anyway.

I can't figure out how to drain the front differential. WTF!! I have no idea what axle it is, other than that it's a 3.55 ratio. Do some have no drain plug? There's a big fill plug about halfway up, but I can't find a drain, and there's no rear cover to remove. It seems to be two, very thick halves, but the front side, where the bolts are, is connected to the steering arm, which would be a ***** to remove to say the least. Can I just shove a tube down there and use a vacuum pump to pull it out?
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2  
Old 07-30-2013, 07:24 AM
Compression Ignition Addict
 

Join Date: Jun 2012
Location: Charlottesville
Posts: 160
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
pics of the job.

Everybody likes pictures. These don't really help to identify what front axle I have, or how the hell to change the gear oil, but I thought I'd share what my 400K differential looks like. It seems it's been modified or gears replaced at some point, as there is a very non-stock looking cut mark on the piece surrounding the gearing. The gears have some rust on one side of the gears only, other side is fine, but rust appears old; not something that cropped up over a week or two. There's pitted rust on the inside of the differential cover as well. I brushed it as best I could, but not replacing it at this point. It wasn't leaking, and I need to drive the truck. I cleaned off all the old silicone, cleaned up the surface with lacquer thinner (because I had it handy), and applied black RTV silicone to the differential housing. I let it sit overnight before refilling the case.
Attached Thumbnails
Changing differential and transfer case oil after deep water crossing.-20130729_203435.jpg   Changing differential and transfer case oil after deep water crossing.-20130729_203817.jpg   Changing differential and transfer case oil after deep water crossing.-20130729_231605.jpg  
Reply With Quote Quick reply to this message
  #3  
Old 07-30-2013, 08:40 AM
Compression Ignition Addict
 

Join Date: Aug 2008
Location: Madison, WI
Posts: 3,068
Thanks: 2
Thanked 72 Times in 70 Posts
Feedback Score: 0 reviews
You must have an F250 (and no, truck info in your sig doesn't help, since they can be turned off); if so, you have to pretty-much take the front end apart to drain the front diff.
Reply With Quote Quick reply to this message
  #4  
Old 07-30-2013, 08:52 PM
Serving Our Country!
 

Join Date: Aug 2007
Location: Manor, TX
Posts: 2,859
Thanks: 0
Thanked 16 Times in 15 Posts
Feedback Score: 2 reviews
I would fill the diffs, drive 50 miles then fill them again just to make sure. The front of your 250 is a D50 TTB, the cover is part of the axle. You will have to pull it apart or drill a drain hole.
Reply With Quote Quick reply to this message
  #5  
Old 07-31-2013, 04:32 AM
Compression Ignition Addict
 

Join Date: Jun 2012
Location: Charlottesville
Posts: 160
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Thanks. I figured it was the TTB because of all the crap people say about the "TTB's". What a dumb design. You may be onto something on the drilling a drain hole bit. It would be fairly easy to drill and tap a drain hole, then use a magnet to get out all the metal filings. The hard part is drilling in the right place to get the tap to go all the way through.


Anyone have a picture of a disassembled D50?
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Ford Powerstroke Diesel Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools
Display Modes

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -8. The time now is 07:02 AM.


Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO 3.6.1
Garage Plus, Vendor Tools vBulletin Plugins by Drive Thru Online, Inc.

vB.Sponsors