In this video I show you how to remove your Borg and Warner 44-06 Electric Shift Transfer Case from the 4R70W Transmission on this 2003 Ford F-150 4.6L and replace the input shaft seal.

The problem the customer had was, the transmission indicator showed that there was no fluid in the transmission. Upon inspection he saw no visible leaks.However the transmission was 3 quarts low. That's when he brought it to me and I discovered all the transmission fluid was in the transfer case.
NAPA # 18771 Transfer Case Input Shaft Seal
NAPA # 99187 Transfer Case Input Shaft Speedi-Sleeve
T-Case Info:
The Borg-Warner 44-06 manual shift and electronic shift transfer cases are a three-piece magnesium design. The unit transfers engine power from the transmission to the front and rear axles. Under normal driving conditions the unit is in 2-wheel drive high (2H), but when desired, the operator may shift into 4-wheel drive high (4H) or 4-wheel drive low (4L). The operator may shift from 2H to 4H or from 4H to 2H at any speed up to 88 km/h (55 mph). The vehicle speed must be less than 5 km/h (3 mph), the brake applied, and the transmission in NEUTRAL to shift into 4L. The transfer case is shifted either manually or electronically. The unit is lubricated by a positive displacement fluid pump that channels fluid flow through holes in the rear output shaft.

47 thoughts on “Transmission fluid low / no leaks / replace transfer case input seal – ford f150”
  1. Avataaar/Circle Created with python_avatars SerratedAMG says:

    Thanks for the video. Really good camera angles and lighting.
    Luckily, truck doesn't have the cross-member in the way, front driveshaft and case bolts are really accessible.

  2. Avataaar/Circle Created with python_avatars James James says:

    2022 Just took my 2004 F150 in for a transmission fluid exchange mainly because fluid was so low that it did not measure. Found that this seal is likely leaking at 144,000 miles. So I was glad to better understand what was involved. Thanks for this excellent video!

  3. Avataaar/Circle Created with python_avatars Big C 313 says:

    I have a 95 F150 5.0 four-wheel drive it's leaking between the transmission in the four-wheel-drive casing would that be the gasket?

  4. Avataaar/Circle Created with python_avatars Sheila K says:

    Hi

  5. Avataaar/Circle Created with python_avatars Rey Cardenas says:

    Great video thanks

  6. Avataaar/Circle Created with python_avatars Antonio Claudio Michael says:

    Skf brand and National make good seals the skf is my favorite aftermarket brand though never had any issues so far with there parts fitting actually have had skf seals be the only brand that fit and sealed and were identical to factory specs on inner and outer measurements @SouthMainAutoRepairLLC

  7. Avataaar/Circle Created with python_avatars Bobby Marsh says:

    Man I love your work reminds me of myself awesome job you go brother

  8. Avataaar/Circle Created with python_avatars Antonio Claudio Michael says:

    Definitely more Informative on the older videos In the sense that you show a ton more of the nuts and bolts process but your newer videos around 4 years ago and now show more comfortability and More humor Keep up the amazing Work Dr. O aka Eric O love the videos especially the older ones like this one still just as Informative and entertaining as all the rest @SouthMainAutoRepairLLC

  9. Avataaar/Circle Created with python_avatars Gregory Thomas says:

    Always lubricate you shaft!

  10. Avataaar/Circle Created with python_avatars bixby9797 says:

    Jan 2022. Losing tranny fluid, no leak. Took out fill plug and there it was so hunted for a video to see if I could do the seal myself. This is a great step by step and I'm going to give it a shot. Thanks.

  11. Avataaar/Circle Created with python_avatars javier4456 says:

    well job done, one comment, loosed up

  12. Avataaar/Circle Created with python_avatars Todd Conklin says:

    For future reference.. you can just remove the exhaust pipe.. and you don't have to bother with the cross member and ride hight bars

  13. Avataaar/Circle Created with python_avatars Chris Bentley says:

    Transformation from here to 2022 is massive. I prefer the older Eric O who is relaxed and joking. Still a great video but the sound has improved and he is certainly more relaxed in front of the camera now. Still a great video and very informative.

  14. Avataaar/Circle Created with python_avatars cardo says:

    I know the name is already taken, but Eric O. is a humble mechanic an ace of a technician with a knack for explaining things. The people who live in the community where his shop is located in Upstate NY are lucky to have him as their local mechanic.

  15. Avataaar/Circle Created with python_avatars Bismarck San Diego says:

    7 years ago. WTF man ?! I hope you learned something since then. You should have washed and waxed the transfer case before reinstalling it. GG 🙂

  16. Avataaar/Circle Created with python_avatars Breauk En says:

    Stop signs are octogons lol! Jk love your videos!

  17. Avataaar/Circle Created with python_avatars Ron's Easy Fix # Just Do it says:

    I agree you're videos are a lot better and you have always made it easy to understand how to do the job.

  18. Avataaar/Circle Created with python_avatars jr neff says:

    so a batery reset is a that need uhg

  19. Avataaar/Circle Created with python_avatars IIGBII says:

    I rebuilt my Transfer Case(TC) on my SUV. I also filled the cavity(up to half the spline/shaft), between the tranny and the TC, with high temp grease so when the SUV TC and tranny heats up, the spline is sitting in liquid grease, so it's always lubed. Furthermore, I, silicon sealed the coupling adaptor cover with silicon and left a 1/10th area at the top, free from silicon, for a breather(grease expands as it liquifies). Both the TC and Tranny for my SUV Uses the same ATF.

  20. Avataaar/Circle Created with python_avatars Nate Hess says:

    You r a highly skilled individual! Very much enjoy watching ur work and processes . Thanx for explaining and showing so much of the tips that come from only years of experience. Your very good at explaining the why. Guys like urself r very important to the world. People take for granted all these mechanical things work thru time and temps and r kept moving by men like yourself everyday!!

  21. Avataaar/Circle Created with python_avatars C Quay says:

    Great video. This had kung fu tire removal, fire fire fire, dad reference, Mrs O, and mind crippling rust. Honorable mention for the ad lib brake clean noise👍

  22. Avataaar/Circle Created with python_avatars June Earl says:

    Hello there I have a 2016 Chevy Cruze 1.8 l I bought a new battery new alternator and my inside light dash it keeps coming down saying battery savior active what do I do next

  23. Avataaar/Circle Created with python_avatars R theprizeisright says:

    I'm so happy to watch your longer videos your so thorough i watch some of thee other videos made by parts companies and their video quality is excellent but they use the same old bolts don't clean the work area off dont clean the gasket material in some cases

  24. Avataaar/Circle Created with python_avatars French20cent says:

    "Okay I'm gonna remove the driveshaft"

    Lights up the torch

  25. Avataaar/Circle Created with python_avatars Beardy Face says:

    When doing a job like this with seals between two transmission sections, first ask yourself why the seal failed, usually each casing will have some form of breather or vent to prevent building pressure as it warms up. If such vents become blocked & you don't clear them as part of the job, you'll be doing the whole thing over very soon after the first repair, may well be the cause of the initial failure.

  26. Avataaar/Circle Created with python_avatars David vonAnderseck says:

    Wow msn nice very education and helpful thanks

  27. Avataaar/Circle Created with python_avatars Justin Case says:

    Is there a seal in the tranny tail section?

  28. Avataaar/Circle Created with python_avatars DeviouX says:

    Mr.O: go ahead and slide your shaft right out.
    Me: that’s what she said.
    Also me: giggles like a high school kid 😆

  29. Avataaar/Circle Created with python_avatars Greg Hill says:

    when i used to do my boat seals they recommended loctite to seal the metal part of seal to the housing seemed to work pretty well

  30. Avataaar/Circle Created with python_avatars Jim Policke says:

    What were those red tubes hanging under the truck for?

  31. Avataaar/Circle Created with python_avatars Ronald Brosius says:

    For almost all seals like that, we use bearing mount, or sleeve retaining compound, on outside of seal.(never had one leak)

  32. Avataaar/Circle Created with python_avatars Ronald Brosius says:

    Another way to remove that seal, is screw a self tapper or a couple in seal, not all the way. Use a pry bar, or Carpenter hammer, pry on screws. Usually comes right out. I actually made up a slide hammer that attaches to screws slide hammer seal out.(hopefully this helps 👍)

  33. Avataaar/Circle Created with python_avatars craig meier says:

    This video came up automaticly. It is 2021 and this video is 6y old. I like how you described the process, but it's cool to recognize the improvements.

  34. Avataaar/Circle Created with python_avatars Randy Schnurbusch says:

    Love your videos! I hate to ask but if the transmission fluid was getting into the transfer case, doesn't that mean the transmission output shaft seal was also bad? Asking for a friend. 😅

  35. Avataaar/Circle Created with python_avatars Turning Wrenches Auto Repair & Maintenance says:

    All that rust would drive this Cali tech insane 😭😵‍💫😳🥺🥳👨🏻‍🔧🤣

  36. Avataaar/Circle Created with python_avatars nic obrien says:

    i m curious why cant you just sepetate the tranfers case from transmission without totally removing it….

  37. Avataaar/Circle Created with python_avatars Eric Beard says:

    I did yst on dodge fakota66and had to offer det 3 degrees for crown in road…. guys around here are part changers and don't now shit…. I did my rear end fiff and bearing in driveway while grease freezed… watch a 3 min video how do guys get jobs

  38. Avataaar/Circle Created with python_avatars CanMan says:

    Silicone = Mechanics DUCK TAPE

  39. Avataaar/Circle Created with python_avatars Rusty Bobbitt says:

    You still seem concerned with the bafoons that criticize your work. What do these people do for a living if anything? You do great work and only a jerk could be offended. Love your videos and work keep it coming.