So, I want to find a Screw 4X4 with the 4Auto... what package do I need?? I will use the 4A in the snow a lot during the winter. But have no clue what packages include this.

 

I think 2 speed 4A is available on Lariats but standard on Platinums and Limiteds. My Platinum has it.

 

You need the 502 or higher.

 

Old thread i know, but seems very pertinent.

If i'm reading this all correctly, unless my shift **** looks like the one above, that says AWD on it, then my 2012 Lariat does NOT have the two speed TOD transfer case in it?

 

Do you have "4A"?

 

Yes, i have 4a instead of AWD (pictured above)

 

High and Low are different speeds.

2H, 4A, 4H, and 4L is a 2 speed, TOD transfer case.

The one pictured above has 2H, AWD, and 4H. That is a single-speed, TOD transfer case.

 

This is for sure? Do you have any idea on the function of the TOD case when it's set to 2hi for example? complete front axle disconnect?

 

In 2 high, the hubs are disengaged. The carrier will still spin, however.

And yes, I am certain that High and Low gear are different speeds. The one-speed TOD only has that, one speed. It is perfectly described in the function of the t-case.

 

Carrier? as in the front driveshaft?
If that's still spinning, it's going to spin the axles then, just not drive the wheels as the hubs are disconnected? Could you technically grab and stop that from turning? Is this from a constant binding from a clutch inside the transfer case then?

Where is the function of the tcase description you're talking about?