Drive Axle - 8.8" Ring Gear Differentials: Description
Rear axle is a hypoid-design ring and pinion gear encased in an integral cast iron axle housing. A one-piece differential case contains a conventional 2-pinion differential assembly.
To signal rear anti-lock brake system operation, rear axles use an exciter ring pressed on differential case behind ring gear, and a sensor mounted in axle housing. A space is provided between ring gear and exciter ring for measuring ring gear runout.
Aerostar is equipped with 8.8" ring gear differential. Rear axle housing is equipped with coil springs.