Subaru ff-1/1300/1400/1600/1800/Brat 1970-1984 Repair Guide



The rear drive system of the four wheel drive models contains a differential unit, a driveshaft connected to the output shaft of the transfer case, and an axle shaft running to each rear wheel. The driveshaft is equipped with two maintenance free universal joints and a ball spline at the transfer case connection. To aid in reducing drive train noise and vibration, the differential is mounted to the vehicle body with three or four rubber bushings, one or two at the front and two at the rear of the differential carrier.