Type 1030 and 1031 Rear Axles with Limited Slip Differential

NOTE: The following applies only to 1030 and 1031 rear axles, for information on the limited slip used in the 1041 rear axle, refer to automatic Differential Lock.






The function of the limited slip [1][2]differential is to prevent one wheel from spinning while the other is at rest.

Models with a limited slip [1][2]differential are equipped with four pinions supported on two shafts (comprising the spider). (A normal differential is provided only with two pinions and one shaft.)

The side of the shaft in contact with the [1][2]differential housing carries a V-shaped bevel, which engages a corresponding notch in the housing.

As the engine begins to drive the car (i.e. as the drive (axle) shafts rotate), the pinion shaft begins to move up the sides of the notches in the [1][2]differential housing. Since these are cut in a different direction for each shaft, the differential gears will be forced in opposite directions, compressing the friction plates behind the gears and braking the differential. This counteracts the tendency of the wheels to run at different speeds.

Limited Slip [1][2]Differential Not Engaged





This applies only when the engine is neither driving nor braking.

Limited Slip [1][2]Differential Engaged





The friction plates are compressed and the [1][2]differential is braked.