A drivetrain for a vehicle includes front and rear axles and a transfer case
including
two planetary gear sets and four clutches. The first member of the first planetary
gear set is continuously connected with the first member of the second planetary
gear set and the rear axle. The third member of the first planetary gear set is
continuously connected to the second member of the second planetary gear set and
the front axle through a transfer chain. An input is selectively connectable with
the first member of the first planetary gear set through a first clutch, connectable
with the second member of the first planetary gear set through a second clutch,
and connectable with the third member of the first planetary gear set through a
third clutch. A fourth clutch selectively connects the third member of the second
planetary gear set with ground. The first, second, third and fourth clutches are
selectively engageable to provide front wheel drive high, four wheel drive high,
all wheel drive mid, four wheel drive mid, rear wheel drive low and four wheel
drive low ratios between the input and the front and rear axles.