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  1. #1
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    Default Difflock vs Traction control

    I have a 2.8GD6 and I have noted something which I hope others can elaborate on if they have had the same experience.

    Whilst driving particular terrains and specifically some obstacles of loose rock or loose sandy conditions..
    and even just going up a rock climb like Gert se Klip or Waterval at 3 provinces...
    Vehicle conditions are
    1. Low range 4L
    2. Difflock on
    3. Tyre pressures at 1.5 bar.
    4. 1st or 2nd gear.

    So with Low range engaged and difflock on, the traction control disengages.
    The moment you disengage Difflock, the traction control engages.

    At some point as per the driving terrain above, i battled to gain traction or get to the top of a particular " obstacle" with difflock on.
    However, with difflock disengaged, I do it much easier and the traction kicks in completing such obstacle or condition with ease.

    Over the weekend, I stopped using Difflock and just let the traction control do its thing..

    The same applied for some snotty slippery mud experienced over the weekend. low range/difflock on, went nowhere...stood on one place and spun mud all over.

    In Low range difflock disengaged... traction control lights flickering and voila, moved forward without any issues..
    RechardT

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  3. #2
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    Default Re: Difflock vs Traction control

    Is that diff lock actually locking ?
    Don’t blame yourself over past mistakes. It’s like driving down the N1 while looking in the rear view mirror only.

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  4. #3
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    Default Re: Difflock vs Traction control

    I would think that with TC on, the front wheels are gripping as well. With DL only, you effectively have an open diff in front which will be of little use in difficult traction situations. almost like having a front diff lock or not.
    There is never a right time to do the wrong thing and never a wrong time to do the right thing!

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  6. #4
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    Default Re: Difflock vs Traction control

    I would agree with Francois. If your truck only has RDL then the front might not be pulling its weight properly. Engage TC and you have all 4 wheels doing their thing. I cant remember if you said you had FDL
    Estee = S T = Sean Towlson

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  7. #5
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    Default Re: Difflock vs Traction control

    I find too much wheelspin with traction control. When I see something that's going to cause slipping I usually enable the difflock. But I think if your vehicle has a very good traction control system then its not even necessary in most cases.

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  9. #6
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    Default Re: Difflock vs Traction control

    That is interesting.

    On my Navara I have to disengage TC when I shift to 4H and before I shift to 4L.

    I can only engage DL when I am in 4L.
    Cheers
    Willem Greyling

    "When the wise man points at the moon, the imbecile examines the finger" - Confucius

  10. #7
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    Default Re: Difflock vs Traction control

    This is one of the things I love about the FJ. In low range, you can enable A-TRAC on all 4 wheels. If you then engage rear diff lock, TC obviously disengages for the rear axle, but A-TRAC stays on the front wheels. Best of both worlds, and turning circle not impacted at all. 😊

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  12. #8
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    Default Re: Difflock vs Traction control

    Perhaps there is a mod to fool the computer to allow both RDL and traction control to function. I believe some of the Aussies have done this to Pajeros.
    Pieter Greyling
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  13. #9
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    Default Re: Difflock vs Traction control

    Quote Originally Posted by MANDREAS View Post
    That is interesting.

    On my Navara I have to disengage TC when I shift to 4H and before I shift to 4L.

    I can only engage DL when I am in 4L.
    The H is permanent 4wd with TC, next step down is 4H with CDL and TC. After that is 4L with CDL, but TC and STC disengage. FDL and RDL can then be engaged if required. The biggest problem I have is torque in 4L, caused by throttle sensitivity so in my instance, one of those throttle controllers might be the way to go.

    In the P38, I only had TC and a viscous coupling CDL dingus. TC worked in both H and L. A much easier drive.
    Estee = S T = Sean Towlson

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  15. #10
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    Default Re: Difflock vs Traction control

    Quote Originally Posted by rechardt View Post
    ...
    Over the weekend, I stopped using Difflock and just let the traction control do its thing...
    Reminds me of the discovery back in the day, when the guys figured that a luxury/overpriced SUV with traction control, and no short gear stick in the middle, could outperform the rough and tough landcruisers over an obstacle course...

    That still doesn't sit well with some folk.
    "The problem with internet quotes is that they are very often unverified."
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  17. #11
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    Default Re: Difflock vs Traction control

    The new 2021 hilux 2.8 GD6 don't have a difflock ..
    only Limited Slip Diff...

    Wonder why would the move away from manual difflock to LSD
    Peet Rademeyer

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  18. #12
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    Default Re: Difflock vs Traction control

    Quote Originally Posted by GreenZone View Post
    The new 2021 hilux 2.8 GD6 don't have a difflock ..
    only Limited Slip Diff...

    Wonder why would the move away from manual difflock to LSD
    This...

    Quote Originally Posted by rechardt View Post
    ...
    Over the weekend, I stopped using Difflock and just let the traction control do its thing..

    The same applied for some snotty slippery mud experienced over the weekend. low range/difflock on, went nowhere...stood on one place and spun mud all over.

    In Low range difflock disengaged... traction control lights flickering and voila, moved forward without any issues..
    "The problem with internet quotes is that they are very often unverified."
    -Abraham Lincoln


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  20. #13
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    Default Re: Difflock vs Traction control

    Me thinks ASPW has something to do with this
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  21. #14
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    Default Re: Difflock vs Traction control

    Quote Originally Posted by GreenZone View Post
    The new 2021 hilux 2.8 GD6 don't have a difflock ..
    only Limited Slip Diff...

    Wonder why would the move away from manual difflock to LSD

    Is this the same for the new 2021 Fortuner ?
    Last edited by flyfisherman; 2021/02/09 at 01:45 PM.

  22. #15
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    Default Re: Difflock vs Traction control

    Quote Originally Posted by GreenZone View Post
    The new 2021 hilux 2.8 GD6 don't have a difflock ..
    only Limited Slip Diff...

    Wonder why would the move away from manual difflock to LSD
    How sure are you about this?
    There is never a right time to do the wrong thing and never a wrong time to do the right thing!

  23. #16
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    Default Re: Difflock vs Traction control

    Quote Originally Posted by Francois Theron View Post
    How sure are you about this?
    100%
    I have one...
    also spoke to the salesman regarding this an he confirmed it... no difflock
    Peet Rademeyer

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  24. #17
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    Default Re: Difflock vs Traction control

    Quote Originally Posted by GreenZone View Post
    100%
    I have one...
    also spoke to the salesman regarding this an he confirmed it... no difflock
    Click image for larger version. 

Name:	Diff Lock.JPG 
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ID:	605460

    Please ask the Salesman what this switch is for on the Hilux!
    They have Limtited Slip and Difflock!
    Last edited by JWR; 2021/02/09 at 02:37 PM.
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  26. #18
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    Default Re: Difflock vs Traction control

    From toyota website

    Click image for larger version. 

Name:	LSD1.jpg 
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ID:	605461
    Peet Rademeyer

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  27. #19
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    Default Re: Difflock vs Traction control

    Diff locking effect ensures that if one wheel’s traction is compromised, the other wheel continues to put its share of drive to the ground to keep the vehicle moving forward. As a result, the overall traction available from a locked diff is vastly superior to a standard or limited-slip diff. In fact, if fitted to front and rear axles, a 4x4’s off-road ability is doubled.

    While there’s no doubt an LSD can increase traction by limiting the amount of wheel-spin, they usually rely on pre-loaded clutch packs to do so. And these can become less effective over time, usually due to wear in the clutches which can also lead to poor adjustment and overheating.


    Either way, a diff with a limited amount of slip can never match the traction of a diff with no slip – which is where the diff lock comes in and together with Traction control work wonders.

    When confronted with challenging terrain, engage the diff lock before you need it. This will ensure both rear wheels will always receive drive no matter whether they’re both on the ground or not. There is, however, a caveat to this piece of advice: on some vehicles, the electronic traction control will default to ‘off’ when the factory rear diff lock is engaged, such as with Toyota Hilux. On some vehicles we have tested, hill-climbing capability has been better on extremely difficult tracks with the factory rear diff lock switched off, relying instead solely on the vehicle’s electronic traction control.


    You should be able to figure out how the electronic traction control on your vehicle operates in conjunction with the rear diff lock after just a couple of tricky hill climbs. If the vehicle struggles with the diff lock engaged, chances are the ETC has defaulted to ‘off’. If you’re not sure, ask the vehicle manufacturer how the system on your particular model operates.
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  29. #20
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    Default Re: Difflock vs Traction control

    Quote Originally Posted by JWR View Post
    Click image for larger version. 

Name:	Diff Lock.JPG 
Views:	450 
Size:	143.9 KB 
ID:	605460

    Please ask the Salesman what this switch is for on the Hilux!
    They have Limtited Slip and Difflock!

    JWR,
    not afraid to admit it but you are right.
    I have the same switch in my 2021 model.
    Just to show you don't always believe what the salesman tells you..
    Will test it this afternoon.

    Click image for larger version. 

Name:	Difflock switch.jpg 
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ID:	605462
    Peet Rademeyer

    2021 Toyota Hulix Xcab 4x4
    2006 Land Rover Discovery 3 V8SE
    2007 SOLD Mercedes Vito 115CDI
    1998 Sold - Kia Sportage 4x4 Gen1
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    1996 Sold - Isuzu 2.8 DT Reef

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