I am looking at purchasing a 2014 Durango with the Hemi V8 and the 8 speed AWD trans (two speed transfer case) to replace a 2001 Tahoe. I'm trying to get an understanding of how the Durango Low 4WD setting compares with my current Tahoe's Low 4WD system. In the Tahoe, in Low 4WD I have been told that all the wheels are locked (I get axle binding if I try to make a tight turn in Low 4WD, so it is a fairly basic system) so the torque is evenly split between all 4 wheels whereas I am being told that the Durango has a variable torque split capability in Low 4WD between the front and rear axles that does not lock up all 4 wheels but can lock the wheels on each axle and apportion torque between the axles within designed parameters. My understanding is that in the normal AWD setting, the Durango operates normally in RWD but automatically goes into AWD at a fixed 50:50 apportioned split between the rear and front axles when it detects slippage. The dealer sales personnel telling me all this about the Durango are not sure they are correct about this so that is why I'm asking in this forum. My reason for the question is that I have a 13-15% grade driveway that is 500 ft long. In winter (in northern Michigan) with winter tires, I have found that using my Tahoe in Low 4WD setting is the only reliable way to get up and down the drive; AWD crossovers like the GM Enclave/Traverse, Acura MDX, Honda Pilot and Ford Explorer have had issues getting up the driveway. I need space for up to 7 people so that is the reason why I have not looked at the Grand Cherokee with Quadra Trak. I would appreciate any additional information about the Durango two speed transfer case system and how it mechanically operates versus a conventional (old style) 4WD system.