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qhumberd
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T@B 2021 400 wheel bearing repacking question

Jake_Elwood_and_us
Jake_Elwood_and_us Member Posts: 65
in Service/Maintenance & Recall Notices
I pulled one of my drums off today hoping for an easy repack of the bearings, not so. I need to replace the inner seal as it needs to be removed to access the inner bearing and be replaced when reinstalling. I have scoured the Tab forum for information and have not found the answer. I don't even know for sure which axle I have. Nucamp did not have an answer but might get back to me. The only info which came with the trailer when bought was a simple card saying -go online. The online link states that the model number is listed on the axle mid way which is, of course, buried under a shield which I do not want to remove. I think it is the 4400 lb. rated capacity one. Finding the correct seal online has been a chore and I'm not sure if the one I might order would be the correct one.
I'm hoping someone who reads this has done this themselves and has the information. Thanks in advance.
2021 T@B400 BD  2000 4x4 Tundra 2021 Ford 150 STX 2.7 ecoboost, Calif. coastal-sand & redwoods
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Comments

  • qhumberd
    qhumberd Administrator, Moderator Posts: 776
    edited March 2025
    I believe the 400 Boondock axle is the same for all the 400 years models. Here is the info from my 2019 400 BD. I am about to do my second bearing inspection and service. You likely do not need new bearings, but you will need a rear seal.

    We have the 4K lb Dexter axle.

    The Dexter manual is for all their axles is also attached as it specifies the procedure.


    2019  T@B400 Boondock Lite "Todd"
    2016 Toyota Tundra 5.7 Crew Cab
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  • qhumberd
    qhumberd Administrator, Moderator Posts: 776
    I found the rear seals at NAPA locally for about 6.50 per seal. Dexter number was 010-019-00.
    2019  T@B400 Boondock Lite "Todd"
    2016 Toyota Tundra 5.7 Crew Cab
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  • qhumberd
    qhumberd Administrator, Moderator Posts: 776
    I just looked at the specs from my attachment and it shows 4K axle so I retract the 3500 lb above.
    2019  T@B400 Boondock Lite "Todd"
    2016 Toyota Tundra 5.7 Crew Cab
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  • Jake_Elwood_and_us
    Jake_Elwood_and_us Member Posts: 65
    Thanks qhumberd, I did finally find that same number on the rubber part of the seal. I needed strong reading glasses and a magnifying glass to be able to read it. I was able to find the same on Amazon. Since I want to finish this asap I'll call the auto supply house nearby, not sure if it's a Napa store. Hopefully they will have it in stock.

    2021 T@B400 BD  2000 4x4 Tundra 2021 Ford 150 STX 2.7 ecoboost, Calif. coastal-sand & redwoods
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  • manyman297
    manyman297 Member Posts: 1,433
    edited November 2024
    I have a 2021 400 Boondock and this is the seal I used: https://a.co/d/994o1zO
    2021 400 BD
    2020 Tacoma TRD Off-Road 
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  • Mickerly
    Mickerly Member Posts: 485
    Any farm supply store, like Tractor Supply, Atwood's, etc. will have Dexter parts. I buy seals at O'Reilly's Auto. You just need the weight rating of the axle.
    2018 320CS-S
    "Just Enough"
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  • cherryhe
    cherryhe Member Posts: 1
    edited March 2025
    It looks like your nüCamp trailer has a 4,400 lb axle, likely from Dexter or Lippert, but identifying the exact inner seal has been difficult without accessing the axle tag. Common Precision bearing and seal sizes for a Dexter 4,400 lb axle include inner bearing L68149, outer bearing L44649, and inner seal 10-36 or 10-19. To ensure the correct fit, measure the spindle and hub bore or check a bearing/seal kit like BK3-110. Online sources like eTrailer or local trailer supply stores should have the right parts. If uncertain, removing and measuring the old seal is the best option.
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  • tabiphile
    tabiphile Member Posts: 470
    First, bravo for taking this on. It is a job that is well within the capabilities of anyone who has basic tools, can read and follow directions and is willing to give it a try.
    First timers.... it is generally a good idea to expect to replace the rear seals and to have them on hand before you pull things apart. Any decent auto parts or a trailer shop (where I get mine) will have these on hand as they are very standard bits.....
    Point being, do not try to save the existing seals, just yank them out. Yes, there is a special puller available for that.....most of us will use a screwdriver since new ones are going back in after the repack. 
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  • Maxcamp
    Maxcamp Member Posts: 352
    edited March 2025
    I use a piece of heavy wall pvc pipe of correct diameter to tap the rear bearing races out after hub removal.

    Mic your oem and aftermarket bearing
    Seal O.D. to ensure compatibility.  Some races and dust covers in auto store are a poor fit and could ooze grease back to brake pads, a very undesirable outcome.

    I ordered correct bearing and seal part numbers online after the above issue occurred on tab and construction trailer.

    2021 T@B 320S Boondock/ 2012 Tacoma 4 cylinder truck / 2023 Tacoma 6 cyl. truck

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