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The designers of heavy-duty off-road vehicles have been facing increasing pressure to reduce the cost and time required for assembly and maintenance. While the requirement to reduce assembly times is mainly an OEM driven objective, the requirement to reduce maintenance times is frequently driven by the customer. The design team is usually faced with the challenge of balancing functional requirements with what are often viewed as wish lists of easy assembly and maintenance, under the pressure of ever shorter development cycles. As a result, vehicle maintainability and ease of assembly are often overlooked early in the design cycle which can lead to less than desired results. This paper explores the design objectives and resultant solutions which were developed in the creation of the power-pack of a heavy-duty off-road vehicle.