1. Welcome to Tundras.com!

    You are currently viewing as a guest! To get full-access, you need to register for a FREE account.

    As a registered member, you’ll be able to:
    • Participate in all Tundra discussion topics
    • Transfer over your build thread from a different forum to this one
    • Communicate privately with other Tundra owners from around the world
    • Post your own photos in our Members Gallery
    • Access all special features of the site

Front tow hook torque specs please?

Discussion in '3rd Gen Tundras (2014+)' started by trooper669, Jul 23, 2018.

  1. Jul 23, 2018 at 2:54 PM
    #1
    trooper669

    trooper669 [OP] New Member

    Joined:
    Jun 20, 2018
    Member:
    #16295
    Messages:
    117
    Gender:
    Male
    Vehicle:
    2018 1794 MGM
    TRD front and rear sway bars/ CAI. Recon smoked tail lights. LED Bed Lights. LED grill lights Bilstein 6112 front and 5100 rear. RC 1” rear block. RC lower grill LED bar. Nitto Ridge Grapplers 295x60x20 on Fuel D-251 couplers. SDHQ ABS covers. Rear under seat storage. Body mount rebuild. Color matched mirrors, handles. Raptor step bars.
    2018 1794. Going to paint the front lower tow hooks, but all the research I have done shows bolt torque spect at 43, 63, and 83 ft. lbs. Can anyone provide the CORRECT specs please? I would assume since since the tow bar bolts are 84 ft. lbs, the tow hook bolts should be about the same?
     
  2. Jul 23, 2018 at 3:03 PM
    #2
    trooper669

    trooper669 [OP] New Member

    Joined:
    Jun 20, 2018
    Member:
    #16295
    Messages:
    117
    Gender:
    Male
    Vehicle:
    2018 1794 MGM
    TRD front and rear sway bars/ CAI. Recon smoked tail lights. LED Bed Lights. LED grill lights Bilstein 6112 front and 5100 rear. RC 1” rear block. RC lower grill LED bar. Nitto Ridge Grapplers 295x60x20 on Fuel D-251 couplers. SDHQ ABS covers. Rear under seat storage. Body mount rebuild. Color matched mirrors, handles. Raptor step bars.
    I think I found the answer. 65 ft. lbs in case anyone needs the correct torque.
     
    NewImprovedRon likes this.
  3. Jul 23, 2018 at 3:04 PM
    #3
    sr5shark

    sr5shark No matter where you go, there you are.

    Joined:
    Feb 25, 2018
    Member:
    #13133
    Messages:
    920
    Gender:
    Male
    First Name:
    Alan
    Walnut Creek, CA
    Vehicle:
    2016 SR5
    Fox & ADS | SCS SR8 | Nitto RG
    The TRD Pro skid plate installation instructions say to remove and reinstall the tow hooks. This doc lists the torque as 43 ft-lbf - this is what I used when I painted my tow hooks.
     
    Black@Blue19 and trooper669 [OP] like this.
  4. Jul 23, 2018 at 3:49 PM
    #4
    trooper669

    trooper669 [OP] New Member

    Joined:
    Jun 20, 2018
    Member:
    #16295
    Messages:
    117
    Gender:
    Male
    Vehicle:
    2018 1794 MGM
    TRD front and rear sway bars/ CAI. Recon smoked tail lights. LED Bed Lights. LED grill lights Bilstein 6112 front and 5100 rear. RC 1” rear block. RC lower grill LED bar. Nitto Ridge Grapplers 295x60x20 on Fuel D-251 couplers. SDHQ ABS covers. Rear under seat storage. Body mount rebuild. Color matched mirrors, handles. Raptor step bars.
    Thanks. Thats what I mean. I'll go with 43 since the skid plate instructions advised it. Thanks! I'll copy @Roman in this, he should know!
     
    Roman likes this.
  5. Jul 24, 2018 at 3:33 PM
    #5
    sr5shark

    sr5shark No matter where you go, there you are.

    Joined:
    Feb 25, 2018
    Member:
    #13133
    Messages:
    920
    Gender:
    Male
    First Name:
    Alan
    Walnut Creek, CA
    Vehicle:
    2016 SR5
    Fox & ADS | SCS SR8 | Nitto RG
    I would not be surprised if Toyota had different documents with different torque settings - 43 does seem a bit low.
     
    CaptainGrumpus likes this.
  6. Jul 24, 2018 at 4:01 PM
    #6
    NewImprovedRon

    NewImprovedRon Hey! Get off my grass!

    Joined:
    Jul 8, 2015
    Member:
    #1501
    Messages:
    11,945
    Gender:
    Male
    First Name:
    Ron
    Bentonville, AR
    Vehicle:
    2015 Radiant Red TSS Doublecab 4X4 Off Road
    Deck rail system, Bed divider, door sill protectors, LED reverse light bars, Aries Bull Bar with 28" 180 watt LED light bar, LED step lights, LED bed lights, driver-side grab handle, TRD Rear Sway Bar, BedRug bed mat and tailgate mat, Morimoto Fog Lights, more to come.....
  7. Jun 14, 2019 at 3:15 PM
    #7
    emdcksn

    emdcksn New Member

    Joined:
    Jul 14, 2018
    Member:
    #17038
    Messages:
    207
    Gender:
    Male
    First Name:
    Eugene
    Eugene OR
    Vehicle:
    2018 Tundra Limited TRD Quicksand CrewMax
  8. Jun 14, 2019 at 3:27 PM
    #8
    NE_WARRIOR

    NE_WARRIOR [HOONIGAN] Wannabe

    Joined:
    Nov 29, 2018
    Member:
    #22342
    Messages:
    1,361
    Gender:
    Male
    First Name:
    Nick
    Bernardston, MA
    Vehicle:
    2011 MAGNETIC GREY CM ROCK WARRIOR
    Toytec Aluminum shift knob, S&B CAI, BAMufflers 6" catback
    6 Ugga Duggas and it should be fine
     
  9. Jun 14, 2019 at 3:38 PM
    #9
    Black Wolf

    Black Wolf SSEM # 0.378

    Joined:
    Apr 20, 2014
    Member:
    #378
    Messages:
    29,417
    Gender:
    Male
    First Name:
    Matt
    Aurora CO
    Vehicle:
    2014 Attitude Blaaaaack,5.7L DC Limited TRD 4X4
    RC steps, Zone UCA's, Fat Bob Vated coilovers, Pro Form Fab shackles, Patagonia M/T's, Ranch Hand Grill Guard, ToyTec diff breather kit, SDHQ AIP relocation kit, ARE MX
    Just use a breaker bar like I did....
     
    CH1NO, Medic343 and (deleted member) like this.
  10. Jun 14, 2019 at 3:56 PM
    #10
    RBDTx

    RBDTx New Member

    Joined:
    Apr 26, 2019
    Member:
    #29690
    Messages:
    146
    Gender:
    Male
    Vehicle:
    2019 Tundra TRD Pro White
    Toyota has a spec sheet for the bolts. If the bolts show an 11 on them that means something like 116 ft lbs. google Toyota Standard Bolt Torque Specifications
     
    JohnLakeman likes this.
  11. Jun 14, 2019 at 4:37 PM
    #11
    emdcksn

    emdcksn New Member

    Joined:
    Jul 14, 2018
    Member:
    #17038
    Messages:
    207
    Gender:
    Male
    First Name:
    Eugene
    Eugene OR
    Vehicle:
    2018 Tundra Limited TRD Quicksand CrewMax
    I read 65lbft quite a bit. So they got that and a little blue LT.
     
  12. Jun 14, 2019 at 4:39 PM
    #12
    emdcksn

    emdcksn New Member

    Joined:
    Jul 14, 2018
    Member:
    #17038
    Messages:
    207
    Gender:
    Male
    First Name:
    Eugene
    Eugene OR
    Vehicle:
    2018 Tundra Limited TRD Quicksand CrewMax
    Now that’s good n tight! Read the chart. If the bolt is 10mm diameter it’s 64lbft, if 12mm diameter then it’s 116lbft. Unless it’s a flange bolt, then it’s more.
     
    Last edited: Jun 14, 2019
    JohnLakeman likes this.
  13. Jun 14, 2019 at 5:21 PM
    #13
    JohnLakeman

    JohnLakeman Burning Internet Daylight

    Joined:
    Feb 21, 2019
    Member:
    #26430
    Messages:
    1,861
    Gender:
    Male
    Outside of Weird, TX
    Vehicle:
    2017 MGM DC TSS 4.6L
    TRD Pro grille, 2018 LED Headlights, Undercover Flex bed cover, Neoprene seat covers, Bed/tailgate mats, Power tailgate lock, auto headlights, illuminated key switch
    Different size/class bolts have different torque values. Read the head markings and measure the thread diameter (mm), and I'll be able to tell you Toyota's specified torque value.
     
  14. Jun 14, 2019 at 5:35 PM
    #14
    Black@Blue19

    Black@Blue19 New Member

    Joined:
    Dec 16, 2018
    Member:
    #23066
    Messages:
    771
    Gender:
    Male
    First Name:
    Ken
    Galveston County
    Vehicle:
    19Tundra TRD Sport 4X4 CrewMAX
    TRD upgrades, everything except leather, sunroof, and electric passenger seat
    If you have a TRD skid Plate it has the specs in the directions and it states replace the four bolts for the tow hooks and torque to 43 ft lb. those directions were with my TRD skid plate With the red TRD on the plate for my truck.
     
  15. Jun 14, 2019 at 5:44 PM
    #15
    emdcksn

    emdcksn New Member

    Joined:
    Jul 14, 2018
    Member:
    #17038
    Messages:
    207
    Gender:
    Male
    First Name:
    Eugene
    Eugene OR
    Vehicle:
    2018 Tundra Limited TRD Quicksand CrewMax
    Yea, I read that one as well with a raised eyebrow. Those are good sized bolts and was at or past 43lbft with a standard 1/2” dr ratchet without trying.
     
  16. Jun 14, 2019 at 6:30 PM
    #16
    emdcksn

    emdcksn New Member

    Joined:
    Jul 14, 2018
    Member:
    #17038
    Messages:
    207
    Gender:
    Male
    First Name:
    Eugene
    Eugene OR
    Vehicle:
    2018 Tundra Limited TRD Quicksand CrewMax
    The head is marked 11. I’ll have to pull a bolt to tell u the rest.
     
  17. Jun 14, 2019 at 7:50 PM
    #17
    JohnLakeman

    JohnLakeman Burning Internet Daylight

    Joined:
    Feb 21, 2019
    Member:
    #26430
    Messages:
    1,861
    Gender:
    Male
    Outside of Weird, TX
    Vehicle:
    2017 MGM DC TSS 4.6L
    TRD Pro grille, 2018 LED Headlights, Undercover Flex bed cover, Neoprene seat covers, Bed/tailgate mats, Power tailgate lock, auto headlights, illuminated key switch
    The highest strength class bolt is 11T. Standard bolt chart lists 11T in 8mm, 10mm, and 12mm in either standard hex head or flange head. Torque values for 8, 10, 12 standard hex head is 31, 64, and 116 ft-lb respectively. Torque values for 8, 10, 12 flange head bolts are slightly higher: 35, 72, 130 ft-lb respectively. For comparison, 8mm ~ 5/16", 10mm ~> 3/8", 12mm ~< 1/2".
     
  18. Jun 14, 2019 at 8:24 PM
    #18
    emdcksn

    emdcksn New Member

    Joined:
    Jul 14, 2018
    Member:
    #17038
    Messages:
    207
    Gender:
    Male
    First Name:
    Eugene
    Eugene OR
    Vehicle:
    2018 Tundra Limited TRD Quicksand CrewMax
    11 on the head, 12mm diameter and I believe it’s a flange bolt with a washer under the head.
     
  19. Jun 15, 2019 at 4:42 AM
    #19
    JohnLakeman

    JohnLakeman Burning Internet Daylight

    Joined:
    Feb 21, 2019
    Member:
    #26430
    Messages:
    1,861
    Gender:
    Male
    Outside of Weird, TX
    Vehicle:
    2017 MGM DC TSS 4.6L
    TRD Pro grille, 2018 LED Headlights, Undercover Flex bed cover, Neoprene seat covers, Bed/tailgate mats, Power tailgate lock, auto headlights, illuminated key switch
    The 43 ft-lb spec in the skid plate instructions must be for the skid plate bolts.

    Whoever wrote the text for the instructions must have been confused about torque values if the tow hook bolts are 11T 12mm. (As in...What's a ft-lb?)

    Edit: The head markings ARE IMPORTANT. Class 11T is stronger than US Grade 8. If a metric bolt is only class 4T or 5T, then that 43 ft-lb torque would make sense on a 12mm bolt.
     
    Last edited: Jun 15, 2019
  20. May 9, 2020 at 7:32 AM
    #20
    Swatdude1

    Swatdude1 New Member

    Joined:
    Dec 1, 2019
    Member:
    #39413
    Messages:
    110
    Gender:
    Male
    First Name:
    Bryan
    Phoenix, AZ
    Vehicle:
    2008 Tundra Crewmax Limited TRD
    AlphaRex Headlights, Katskin Leather, Method 17" Vex with 35"Toyo M/Ts, Icon 3.0 Stage1, Nitro 4.88 gears.
    The instructions are actually Toyota Official instructions...

    http://toyotaparts.sparkstoyota.com/install/PT938-34140inst.pdf
     
    NewImprovedRon likes this.
  21. May 9, 2020 at 8:11 AM
    #21
    JohnLakeman

    JohnLakeman Burning Internet Daylight

    Joined:
    Feb 21, 2019
    Member:
    #26430
    Messages:
    1,861
    Gender:
    Male
    Outside of Weird, TX
    Vehicle:
    2017 MGM DC TSS 4.6L
    TRD Pro grille, 2018 LED Headlights, Undercover Flex bed cover, Neoprene seat covers, Bed/tailgate mats, Power tailgate lock, auto headlights, illuminated key switch
    Well, if they're "Official Instructions", I would certainly do exactly what they say...even if it makes no sense from an engineering perspective. If 11T fasteners in a skid plate application are torqued to full torque, I expect the tapped holes they are going into will be be stripped.

    Edit: Toyota standard bolt specs in the SRM call for 130 ft-lbf on a 12mm 11T flanged head hex bolt.
     
    Last edited: May 9, 2020
  22. May 9, 2020 at 2:12 PM
    #22
    Swatdude1

    Swatdude1 New Member

    Joined:
    Dec 1, 2019
    Member:
    #39413
    Messages:
    110
    Gender:
    Male
    First Name:
    Bryan
    Phoenix, AZ
    Vehicle:
    2008 Tundra Crewmax Limited TRD
    AlphaRex Headlights, Katskin Leather, Method 17" Vex with 35"Toyo M/Ts, Icon 3.0 Stage1, Nitro 4.88 gears.
    The five skid plate bolts are only 21 ft.lbs. One of the dealers I had it serviced at stripped one of them out doing an oil change and I didn't know until several oil changes later. Of course none of them would take responsibility for it.

    Good to see that the new TRD one has the access door on it now so you don't have to take it off every time, same as the RCI one I just installed.
     
  23. May 10, 2020 at 8:31 PM
    #23
    fundratss

    fundratss Send it!

    Joined:
    Jul 11, 2019
    Member:
    #33067
    Messages:
    179
    Gender:
    Male
    First Name:
    Joe
    Colorado Springs
    Vehicle:
    2016 Magnetic Grey Tundra TSS
    Toytec 2.5” Coilover boss suspension 3/1 lift w/camburg uca’s Morimoto xb headlights Morimoto fog Rough country grill 2 RC blacked light bars Volant air intake system Rear air bags (for towing) I’m sure there’s more but I’m lazy
    According to Trd skid plate install it’s 43 ft pounds
    555EA4FD-84A6-4340-9531-9C528C73AE26.jpg
     
    NewImprovedRon likes this.

Products Discussed in

To Top