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Transfer case service time

Discussion in '3rd Gen Tundras (2014-2021)' started by blaserdude, Jun 2, 2021.

  1. Jun 2, 2021 at 2:45 PM
    #1
    blaserdude

    blaserdude [OP] New Member

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    Greetings,
    I am about to service the xfer case on my 2019 (Ravenol 75W). A little concerned about the durability of the plugs. I had an older truck that used the 3/8" drive plugs and one rounded off on removal. Any of you observed this? Part # for spares?
    Regards,
    BC
     
  2. Jun 2, 2021 at 9:25 PM
    #2
    737fixer

    737fixer New Member

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    Just did my 2019 couple of weeks ago. First, you will find the original install of the plugs insanely NOT tight. You will swear they were almost finger tight. Second, you will notice from factory that they put a thread seal on the threads which you will see there is enough to respread it and reuse the plugs. What I found worrisome was when tightening to proper torque with the thread sealant you really seem to be overtighting as the plugs are an expansion fit and you swear you will crack the case. Third, the Ravenol bottles are the greatest thing in the world with the pour spout setup.
    Last week I actually downloaded a ton of shat from the Toyota TIS Techinfo manual site and what was funny is they actually want you to install new plugs on the transfer case at every fluid change. I can only assume this is due to the sealant on the threads. Again, there is plenty of sealant so you can reuse the plugs but ordering new ones would be super cheap. Sorry, I don't have the part #'s. I'm at work right now but will try to post the actual Toyota manual pages for this service tomorrow.
     
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  3. Jun 2, 2021 at 10:09 PM
    #3
    BTBAKER

    BTBAKER HOW CAN I GET RID OF MY NEW MEMBER STATUS?

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    I’m with you. I’m not a fan of that crappy design at all. I’m going to try an mark the threads next time because I found it easy to just keep tightening.
     
  4. Jun 3, 2021 at 6:06 AM
    #4
    blaserdude

    blaserdude [OP] New Member

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    Thanks for the information. I did not know there were torque specs for this type of plug (npt?). I usually just snug them good when using Teflon tape. I have read some reviews of tape being used to reseal these plugs with the caveat to not leave excess tape on the end of the plug. Again, thank you for the information and I would be interested in part no.s and torque specs.
    Regards,
    BC
     
  5. Jun 3, 2021 at 7:11 AM
    #5
    BecauseRacecar

    BecauseRacecar New Member

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    If they are NPT threads, isn't it actually advised NOT to use Teflon on those threads? If they're self-sealing tapered threads then the Teflon could actually lubricate the thread to tighten further than necessary.
     
  6. Jun 3, 2021 at 7:24 AM
    #6
    15whtrd

    15whtrd Mr. Blonde

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    I just used liquid teflon, choked up on the wrench and gave it a light snug with the hand torque wrench. The teflon paste dries a bit. The transfer case isn’t really under any pressure so very unlikely to leak. When I grease my prop shaft I always take a good peek to make sure everything is good. No issues to date.
     
  7. Jun 3, 2021 at 7:23 PM
    #7
    737fixer

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    Actual Toyota Manual added. States model year start as 2016 although I thought this transfer case started in 2014 but its the Toyota manual and they can say whatever they want I guess. As I said before its odd that it states to replace the plugs during service but I can't see way this would be necessary as long as you use a tiny bit of sealant on the threads. Yes, to those who just crapped their pants, the new plugs and your original new from factory came with a sealant on the threads. Sorry about quality of image as scanner broke and had to send from phone. Yes, the entire service is just a single page.

    Screenshot (63).jpg
     
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  8. Jun 4, 2021 at 6:55 AM
    #8
    AnthonyC

    AnthonyC TAKE IT EASY WHILE YOU"RE GOING FAST

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    I just ordered all the bearings and seals for my 2010 Tundra. It's had a faint bearing noise since new. We just bought a 31ft RV made a round trip to Gettysburg, PA from Virginia Beach, VA. On our way home the noise was louder because of the weight I was pulling. I drained the case last week to see what the oil looked like, it was dark and no magnet on the drain plug, the magnet is in the case. I screened the oil through white cotton, all I found was a few flakes of aluminum. When in low range off road pulling a snowmobile trailer with 2 4X4 4 wheelers going to my Brothers place in NY State. His driveway is 3/4's of a mile long and it is steep in places! About 2/3rds the way up my transfer case starts making a bearing noise, his 2008 Tundra never made noise. New bearings are on their way. A new case is in excess of $3,000.00, so before I unpack the bearings and seals I'm going to do a through inspection of all the bearings and race surfaces. Thanks for the heads up on the drain and fill plugs. I'll probably use the teflon tape as well on the threads.
    I also noticed that the vent was plugged because the draining oil did not flow without a gurgle, so I'm sure it has a vent somewhere
     
    Last edited: Jun 4, 2021
  9. Jun 4, 2021 at 7:07 AM
    #9
    joseph_womack

    joseph_womack Don't Lose Sight

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    I did my 2007 a couple months ago and no issues at all, plugs popped right off, I believe the torque spec is only like 24 ft-lbs, so shouldn’t be an issue
     
  10. Jun 4, 2021 at 7:41 AM
    #10
    15whtrd

    15whtrd Mr. Blonde

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    Different transfer case on the 14 and up.
     
  11. Jun 4, 2021 at 9:21 AM
    #11
    joseph_womack

    joseph_womack Don't Lose Sight

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    ohh really? I didn't know that, thats interesting
     
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  12. Jun 4, 2021 at 10:38 AM
    #12
    AnthonyC

    AnthonyC TAKE IT EASY WHILE YOU"RE GOING FAST

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    I heard the 14 and up had Borg Warner transfer cases in them. I can't remember where I read that, I was so engulfed in my transfer case issue.
     
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  13. Jun 4, 2021 at 10:53 AM
    #13
    NWPirate

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    No not Seattle, WA
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    Just did mine this week, crazy how loose they were!
    I put 18 lb/ft and it felt like too much.
    20210602_130254.jpg
     
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  14. Jun 4, 2021 at 10:59 AM
    #14
    crewmaxlmt

    crewmaxlmt New Member

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    Yes, Toyota switched to the Borg Warner in 2014. The 2014 and up transfer cases require a 75W lubricant that has special additives for the electromagnetic synchronization assembly.
     
  15. Jun 4, 2021 at 11:29 AM
    #15
    AnthonyC

    AnthonyC TAKE IT EASY WHILE YOU"RE GOING FAST

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    Nice. Borg Warner always had good tough gear boxes back in the day. I believe my 1970 Camaro SS 396/350 had a Borg Warner 4 speed because it was all cast iron, not aluminum like the Muncie transmissions. I rebuilt many Muncie 4 speeds in my day.
     
  16. Jun 4, 2021 at 11:34 AM
    #16
    AnthonyC

    AnthonyC TAKE IT EASY WHILE YOU"RE GOING FAST

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    I wonder if the new t cases would fit the 2010’s along with the control box that shifts it in and out of 4WD. I priced one at Toyota for my pickup, it was in excess of $3,000.00. The bearings and seals were $465.00.
     
  17. Jun 4, 2021 at 12:23 PM
    #17
    crewmaxlmt

    crewmaxlmt New Member

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    I blew up a few Muncies in my day. Rock Crusher, my ass.:rofl:
     
  18. Jun 7, 2021 at 11:12 AM
    #18
    Bammer

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    Anybody have the part numbers for the drain and fill plugs?
     
  19. Jun 7, 2021 at 11:28 AM
    #19
    Ely010606

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  20. Jun 7, 2021 at 11:43 AM
    #20
    AnthonyC

    AnthonyC TAKE IT EASY WHILE YOU"RE GOING FAST

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    Sorry, I do not.
     
  21. Jun 7, 2021 at 5:09 PM
    #21
    astro-jason

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    I just had front&rear diff, transfer case and trans fluid exchange done at the dealership, way easier than crawling on the ground. 700 bucks. Toyota fluids and no worries.

    -Jason
     
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  22. Jun 7, 2021 at 6:57 PM
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    737fixer

    737fixer New Member

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    36136-0C010 Fill & Drainimage_cd4faa39-e05c-434d-baa7-758622872fc2_200x.jpg image_a4def955-1af5-47b9-97bd-f1ebafd86500_1024x1024.jpg
    This is for the Borg-Warner 2014+ Transfer Case.
     
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  23. Jun 7, 2021 at 6:59 PM
    #23
    737fixer

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    Sorry, don't know why pics came out that way but I guess I pushed wrong button.
     
  24. Jun 8, 2021 at 4:38 AM
    #24
    Bammer

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    Thank you
     
  25. Jun 8, 2021 at 5:22 AM
    #25
    Black

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    Wish I could toss money around like that! $700 for under 1 hour of work and $175 in fluid (I used the proper Toyota 75w oil in the transfer case and Amsoil Severe Duty Gear oil in the differentials).
     
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  26. Jun 10, 2021 at 6:44 AM
    #26
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    I can't find the plugs anywhere? HELP ! :crapstorm:
     
  27. Jun 10, 2021 at 8:22 AM
    #27
    15whtrd

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    I would just reuse them. Actually I did. They weren’t that tight to begin with so I doubt the threads got stretched. If anything they are now made for each other LOL. Get some Teflon paste and just snug them up. I won’t hesitate to reuse mine indefinitely.
     
  28. Jun 10, 2021 at 9:50 AM
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    Bammer

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    I used tape and gave them a good snug, so I'm worried... I will check the fill plug, if its good, then the drain is probably is too.
     
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  29. Jun 10, 2021 at 9:57 AM
    #29
    15whtrd

    15whtrd Mr. Blonde

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    The plug is steel and the case is aluminum. I think the case threads would wear out (stretch) before the plug would. I’m 99.99% sure you should be totally fine as long as you didn’t crank the crap out of it. My biggest fear would be over tightening and cracking the case. I really doubt new plugs would help prevent that. I wouldn’t sweat it John. No leaks, lever 2000
     
    Last edited: Jun 10, 2021
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  30. Jun 10, 2021 at 11:11 AM
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    Thanks Sean
     
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