| 摘要 |
A full time four wheel drive system has a housing in the vicinity of an engine and a transmission, a central differential gear assembly and a viscous coupling assembly containing a front differential gear assembly. The central differential gear, front wheel differential gear, and viscous coupling assemblies are disposed in parallel relationship within the housing for uniformly distributing the load of axle and drive shafts according to the road conditions. The system has a simple structure and economically uses the space in the engine compartment.
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