Selecting the 4WD SYSTEM for your needs
CAR South Africa|CAR July 2024
As 4WD SUVS and double cabs grow in popularity, more first-time buyers face the challenge of selecting a vehicle with a drivetrain that best meets their requirements. We explain the key differences between the all-wheel drivetrains available
Graham Eagle
Selecting the 4WD SYSTEM for your needs

Technically, any system where drive is provided to all wheels is categorised as AWD. However, in SA, we typically refer to three types: part-time 4WD, full-time or permanent 4WD, and AWD. The latter usually applies to a vehicle that operates primarily in 2WD but automatically engages 4WD when the system detects conditions where it's required. Complementing these different systems are features such as diff locks, viscous couplings and brake traction control; all of which play their own role in the systems' function and performance.

It is important that prospective owners carefully weigh the capabilities of these different drivetrain types against their requirements and expectations prior to making a purchase decision. Before explaining the workings of the different systems, including their benefits and shortcomings, it is important that the functions of the differential - a key system component found in all drivetrains within a driven axle and sometimes between frontand rear-driven axles-are clearly understood.

DRIVEN AXLE AND CENTRE DIFFERENTIALS

この記事は CAR South Africa の CAR July 2024 版に掲載されています。

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