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Jim, don't feel bad. I didn't know what it was for either until Dave explained it to me. I still don't understand it well enough to explain it properly. The twin sticks allow you to shift the transfer case for the front and rear separately. Thus giving more control for different obstacles. Dave can more in-depth, but that is the gist of it.
I am guessing one transfer case, but now he can lock the front wheels only, or rear wheels only, of course, would not the rear be locked anyway? I thought the transfer case was to engage, or disengage the front diff, not the rear.
Normally a transfercase will allows you to disengage the front axle only.
Normal shift options look like this:
2wd high (rear axle)
4wd high (both)
4wd low (both)
My shift options look like this:
2wd high (rear)
2wd High (front)
2wd low (rear)
2wd low (front)
4wd high (both)
4wd low (both)
Pretty cool when on the trail and you need low gears but not 4wd, this happens more than you would think.
Many times I am in 4wd just for the gears.
Now that I have a front locker the steering is not as good when in 4wd so this allows me to disengage the front axle while staying in low range.
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