Four-wheel drive & transfer caseEvery L322 has permanent four-wheel drive with a two-speed transfer case for low range. It is a capable system, one of the things that sets the Range Rover apart from soft-roader rivals, and it is well-proven and long-lived. In short: Every L322 has permanent 4WD with low range and a Torsen centre diff, a capable and robust setup.
The 4WD systemDrive goes through a centre differential that normally splits torque between the axles, with a transfer case providing high and low ranges. Unlike part-time systems, it is always driving all four wheels, which suits both the car's weight and its all-weather, all-surface brief. Transfer case & low range
Centre differentialThe L322 uses a Torsen?Torsen (Torque-Sensing) is a mechanical limited-slip differential that automatically sends more torque to the axle with grip, without electronics or clutches.-type centre differential (Torsen T-2): a torque-sensing limited-slip unit that automatically shuffles torque to the axle with most grip. Early US cars are described with an electronically controlled locking Torsen centre diff. This gives strong off-road traction without driver input. Electronic rear differentialSupercharged and TDV8 models gained an electronic rear differential (optional on other models), further improving traction by managing side-to-side torque at the rear axle. These cars also got "Positive Torque", which blips the throttle for faster downshifts. Ownership notes
TIP
The 4WD hardware is strong and differentials/transfer cases last well. On high-mileage cars,
check for worn CV joints and propshafts: clicking on full lock or driveline
vibration. Exercise low range a couple of times a year to keep the actuator free.
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