Cars & Vehicles Auto Parts & Maintenance & Repairs

How to Change the Rear Differential Fluid in a Mustang

    • 1). Park the Mustang on a flat surface and wait at least one hour to avoid the risk of burns from hot differential fluid.

    • 2). Remove the fluid access bolt from the back of the differential by turning the bolt in a counterclockwise direction with a socket wrench.

    • 3). Insert the inlet hose of a fluid siphon pump into the differential through the fluid access bolt's opening.

    • 4). Insert the outlet hose of the fluid siphon pump into a container to store the old differential fluid.

    • 5). Operate the pump to remove the old differential fluid.

    • 6). Pull the fluid siphon pump hose out of the differential.

    • 7). Insert a funnel into the differential through the fluid access bolt's opening.

    • 8). Pour new differential fluid into the funnel until fluid reaches the bottom of the fluid access bolt's opening.

    • 9). Remove the funnel and tighten the fluid access bolt to the differential with a socket wrench.

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