J. Drummond Service Inc. is a Michigan-based company specializing in the design, modification, and repair of commercial trailer hydraulic systems. They distribute and install Acemco power units and offer a full range of parts for purchase. Additionally, they provide custom services such as tube bending, trailer repairs, refurbishing, structural modifications, manufacturing hydraulic power units, and design and engineering services. With a focus on hydraulic systems, J. Drummond Service Inc. caters to the needs of tractors and trailers, offering various types of hydraulic systems and emphasizing simplicity in design for ease of maintenance.