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Rust on rear diff

Discussion in '3rd Gen Tundras (2014-2021)' started by Texan_Tundra21, Feb 22, 2021 at 6:04 PM.

  1. Feb 22, 2021 at 6:04 PM
    #1
    Texan_Tundra21

    Texan_Tundra21 [OP] New Member

    Joined:
    Feb 14, 2021
    Member:
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    3
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    Male
    First Name:
    James
    Vehicle:
    2021 SR5 Crewcab 4x4
    Trd rear sway bar
    What’s up everyone, I looked around on here before posting but couldn’t find anything answering this specific question. My 21 rear diff is starting to show rust on the welding seams which sux but I wanted to see what guys are using to combat the progression of rust and or using to repair rusting that has already taken place. Thanks in advance.
     
  2. Feb 22, 2021 at 11:05 PM
    #2
    panicman

    panicman Everyone remain calm.

    Joined:
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    Eric
    PNW
    Vehicle:
    2018 SR5 CM TRDoffroad MGM
    If needed, a product like fluid film. Clean first, then apply.
     
  3. Feb 23, 2021 at 12:54 AM
    #3
    RPO 579C

    RPO 579C New Member

    Joined:
    Jan 5, 2020
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    Minnesota
    Vehicle:
    2020 Tundra DC TSS barcelona red
    bed cover, weathertech mats, locking gas cap, fensens rear sensor, wet okole seat covers, trd rear sway bar
    I use CRC Marine Corrosion Inhibitor. Very effective against our over-salted Minnesota roads.
     
  4. Feb 23, 2021 at 1:26 AM
    #4
    preacher35

    preacher35 RIGHTEOUS MEMBER

    Joined:
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    Adam
    Texas
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    2018 MGM Platinum Crewmax 4x4
    Damn! That is rather quick, for a 2021 already forming rust.
     
  5. Feb 23, 2021 at 2:26 AM
    #5
    Northbound Train

    Northbound Train Masshole

    Joined:
    Mar 4, 2019
    Member:
    #27050
    Messages:
    192
    Gender:
    Male
    First Name:
    Glenn
    Western MA
    Vehicle:
    Black 2016 SR5 Double Cab 4x4 5.7
    I bought my 2016 used in 2018 with 32K miles. It had rust starting on welds in various places on the frame. Knowing I was going to be driving it in the winter in the Northeast and intending to keep it for a long time, I painted the welds with chassis saver ( a paint like POR15 but I like it better) and then painted the whole frame with Rustoleum. I'm not going to say it wasn't a pain in the ass. Then every year I have the underside sprayed with NH oil which is similar to fluid film. There is not a speck of rust returning or starting anywhere and I don't expect it will for years.
     
    Barrett50 likes this.
  6. Feb 23, 2021 at 3:53 AM
    #6
    Barrett50

    Barrett50 New Member

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    Male
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    2015 DC silver
    I 2nd CRC, seems to stick waaayyyyy better than FFilm.
     
    panicman likes this.

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