Two-speed transfer case with synchronized range shift mechanism

摘要

A transfer case (20a) for a four-wheel drive vehicle having a planetary gear assembly (50) and a synchronized range clutch (72) operably associated with the input to the planetary gear assembly which can be selectively shifted on-the-fly for establishing high-range and low-range speed ratios. A mode clutch (160) is operably disposed between the front (32) and rear (42) output shafts and can be selectively or automatically shifted for establishing a four-wheel drive mode.