Front diff lock

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pietdevs
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Tue Aug 14, 2018 2:44 pm

Has anyone fitted a diff lock to the front axle on a Vigo? If yes I would like some info.

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sakkie4x4
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Wed Aug 15, 2018 9:15 am

I will second you on that request.
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pietdevs
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Wed Aug 15, 2018 2:46 pm

I spoke to the stealers this morning and the one salesman said that the Hiluxes (GD6) after 2015 have a standard front diff lock. If you engage 4x4 the front diff lock automatically engages and the driver can then select the rear diff lock when he wants to. It sounds too good to be true - can someone verify?

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Mud Dog
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Wed Aug 15, 2018 4:04 pm

pietdevs wrote:
Wed Aug 15, 2018 2:46 pm
I spoke to the stealers this morning and the one salesman said that the Hiluxes (GD6) after 2015 have a standard front diff lock. If you engage 4x4 the front diff lock automatically engages and the driver can then select the rear diff lock when he wants to. It sounds too good to be true - can someone verify?
I don't know for sure because I am unfamiliar with the vehicle, but this doesn't sound right to me. AFAIK there is an ADD unit (Automatic Diff Decoupler) and that engages the front diff electronically when 4x4 is selected - that doesn't mean diff-lock.

Practically, lockers are only used here and there where extra traction is required or where normal traction will be lost or diminished due to the axle twisting nature of the obstacle. Permanently locking a diff even in an off-road condition is not good for the diff and can cause damage - it can also be dangerous IRO of control of the vehicle. This will be more so the case where the front diff is locked because of steering.

I think your salesman is confused between engaging the diff and locking the diff. :winkx:
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rigardt
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Wed Aug 15, 2018 5:02 pm

i do agree. sales man doesn't have a clue (like most of the time). if I recall correctly Jaans has a front diff lock in his Vigo. very expensive. I think its in the 22K range.

Mars
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Thu Aug 16, 2018 6:37 am

The GD6 definitely does not come with a front diff-lock as standard. When you engage 4x4 the front and back wheels are locked together as it does not have a centre differential and in low range you can engage a diff-lock on the rear differential.

That should be fine for most off road situations. a Front diff lock is expensive, will be used very seldomly and I understand that it is quite easy to break the front diff if a diff lock is installed although I suspect it is more a case of the front diff lock being used in extreme situations where you are already pushing the envelope with a bigger chance of breaking things.

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