What are IG's 4 Gear Mode Recipes?

[Grenadian]

Hi, Dear
I need a detail of the 4 gear modes of IG.
High / High Lock / Low / Low Lock
My IG has become much smoother in the movement of the transfer case than before.
However, there is no proper usage situation of the 4 gear modes in the user manual.
I need education.

Very Thanks.

 

[Bruce B]

Hi, Dear
I need a detail of the 4 gear modes of IG.
High / High Lock / Low / Low Lock
My IG has become much smoother in the movement of the transfer case than before.
However, there is no proper usage situation of the 4 gear modes in the user manual.
I need education.

Very Thanks.

From the manual…
Not sure exactly what you are looking for beyond this?

 

[landmannnn]

Hi, Dear
I need a detail of the 4 gear modes of IG.
High / High Lock / Low / Low Lock
My IG has become much smoother in the movement of the transfer case than before.
However, there is no proper usage situation of the 4 gear modes in the user manual.
I need education.

Very Thanks.

In simple terms

High - normal roads
High lock - gravel tracks
Low - Slow and steady such as manoeuvring a trailer
Low lock - proper off road conditions

 

[Grenadian]

From the manual…
Not sure exactly what you are looking for beyond this?

View attachment 7878423View attachment 7878424View attachment 7878425View attachment 7878425

Very thanks for this, but Landmannn said what I want.

​

 

[Grenadian]

In simple terms

High - normal roads
High lock - gravel tracks
Low - Slow and steady such as manoeuvring a trailer
Low lock - proper off road conditions

Thanks a lot, What would I choose snow or a little ice?

 

[Bruce B]

Thanks a lot, What would I choose snow or a little ice?

I’d say “it depends”. The center differential lock gets you more traction at the expense of steering. If you are driving on a snowy or icy road, I’d probably leave it unlocked until I found myself in a situation where I was needing more traction say to get up a hill… then I’d lock it to push through.

 

[bemax]

Thanks a lot, What would I choose snow or a little ice?

If driving on a proper road without steep ascents you should stay in high without a locked diff. The Grenadier has a all time 4 wheel drive so you are prepared for some slippery parts if you have the momentum of a decent speed. Normally you shouldn’t notice a spinning wheel in such an situation.

 

[CrazyOldMan]

Thanks a lot, What would I choose snow or a little ice?

Here’s what I do - some snow on paved roads - 4H unlocked. Rural roads where the snow has not been cleared - 4H locked. Went into a field with deeper snow - 4L locked, in Manual at low gear.

 

[parb]

Steep gravel, down or uphill is a place where I go low on as well. Usually with just centerlock.

 

[Zimm]

Thanks a lot, What would I choose snow or a little ice?

high.

low will amplify the tq to the wheels which is not ideal, and any locking will force a tire to break free on a turn, which again is not ideal.

Two nights ago I was fiddling with the gear shifter and it permitted me pull away in second gear. That would be your ideal on a slick surface, and has the added benefit of you controlling the shifting and tq to the tires. I'll have to test that again. These trucks have a ghost in the machine, and there's no telling if that was a one off or it's programmed to allow it.

 

[Tom D]

Centre diff is good for loose traction surfaces even if you dont “need” it go go forwards. It improves handling. Gravel roads for example or packed snow. It also massively improves braking performance on low traction surfaces as due to the brake bias the front wheels are more likely to lock up, with the centre diff locked braking force is shared between all four wheels. Same with packed snow.

 

[Tom D]

The presenter may not be to everyone’s tastes but he’s right about this..
FF to the 5 minute mark..

View: https://www.youtube.com/watch?v=RgMP7YbhvwU

 

[AaronS]

One other thing to note: you should not have the transfer case locked (high or low) on pavement roads.

 

[CrazyOldMan]

high.

low will amplify the tq to the wheels which is not ideal, and any locking will force a tire to break free on a turn, which again is not ideal.

Two nights ago I was fiddling with the gear shifter and it permitted me pull away in second gear. That would be your ideal on a slick surface, and has the added benefit of you controlling the shifting and tq to the tires. I'll have to test that again. These trucks have a ghost in the machine, and there's no telling if that was a one off or it's programmed to allow it.

Icy paved roads correct - you don’t want spin on the tire from a stop. My third scenario (deeper snow off-road) would I go 4L and manually control the gear. You want to ooooooze out of that position. Also - I keep snow socks for the tires just in case.