Differential: Description and Operation
Differential Overview
• Heat the bearing inner race/tapered roller bearing to approximately 100 °C (212 °F) using the inductive heat unit (VAS 6414). Wear protective gloves.
• Replace both tapered roller bearings together.
• Adjust the differential, refer to => [ Differential, Adjusting ] Differential, Adjusting when replacing the tapered roller bearing, differential housing, transmission housing or clutch housing.
1 Transmission Housing
2 Adjusting Shim
• For the differential.
• To select the correct thickness, refer to => [ Differential, Adjusting ] Differential, Adjusting.
3 Outer Race/Tapered Roller Bearing
• Removing, refer to => [ Removing the Outer Race/Tapered Roller Bearing from the Transmission Housing ] Service and Repair.
• Installing, refer to => [ Installing the Outer Race/Tapered Roller Bearing into the Transmission Housing ] Service and Repair.
4 Bearing Inner Race/Tapered Roller Bearing
• Removing, refer to => [ Removing the Bearing Inner Race/Taper Roller Bearing ] Service and Repair.
• Installing, refer to => [ Installing the Bearing Inner Race/Taper Roller Bearing ] Service and Repair.
5 Differential Housing
• With the final drive gear.
• Thrust washer union fitted to differential housing, refer to => [ On some Transmissions, the Thrust Washer Union has a Ridge. ] Service and Repair.
• Spring pin hole adapted to the length of the spring pin, refer to => [ Allocation, Differential Housing ] Service and Repair.
• Allocate according to the Parts Catalog.
6 Bearing Inner Race/Tapered Roller Bearing
• Removing, refer to => [ Removing the Bearing Inner Race/Taper Roller Bearing ] Service and Repair.
• Installing, refer to => [ Installing the Bearing Inner Race/Taper Roller Bearing ] Service and Repair.
7 Outer Race/Tapered Roller Bearing
• Removing, refer to => [ Removing the Outer Race/Tapered Roller Bearing from the Clutch Housing ] Service and Repair.
• Installing, refer to => [ Installing the Outer Race/Tapered Roller Bearing into the Clutch Housing ] Service and Repair.
8 Clutch Housing
9 Seal
• With a sleeve.
• For the right flange shaft.
• If the seal is damaged, replace the both the seal and sleeve. Refer to => [ Right Flange Shaft and Seal ] Right Flange Shaft and Seal.
10 Bolt
• 25 Nm
• Install with the threaded piece - item 18 -.
11 Flange Shaft
• Removing and installing, refer to one of the following:
=> [ Left Flange Shaft and Seal ] Left Flange Shaft and Seal.
=> [ Right Flange Shaft and Seal ] Right Flange Shaft and Seal.
12 Flange Shaft Pressure Spring
• Installed behind the flange shafts.
13 Thrust Washer
• Installed position, refer to => [ Installed Position: Tapered Ring Thrust Washer ] Service and Repair.
14 Tapered Ring
• With grooves for the thrust washer.
• Installed position: differential housing taper.
15 Lock Ring
• Holds the tapered ring, the thrust washer and the pressure spring when the flange shaft is removed.
16 Thrust Washer Union
• Install using transmission fluid.
• The thrust washer union has a ridge on some transmissions. Refer to => [ On some Transmissions, the Thrust Washer Union has a Ridge. ] Service and Repair.
17 Large Differential Bevel Gear
• Installing, refer to => [ Installing the Differential Planetary Gears and Differential Bevel Gear Axle ] Service and Repair.
18 Threaded Piece
• Installing, refer to => [ Installing the Differential Planetary Gears and Differential Bevel Gear Axle ] Service and Repair.
19 Differential Taper Axle
• Removing, with a short roll pin. Refer to => [ Roll Pin with Groove (Short Roll Pin): Removing and Installing ] Service and Repair.
• Removing, with a long roll pin. Refer to => [ Roll Pin without a Surrounding Groove (Long Roll Pin), Removing: Pressing out of the Differential Bevel Gear Axle ] Service and Repair.
• Installing, refer to => [ Installing the Differential Planetary Gears and Differential Bevel Gear Axle ] Service and Repair.
20 Adapter Sleeve
• To secure the differential bevel gear axle.
• Different lengths of spring pins are installed.
• Differentiating the roll pins, refer to => [ Differentiating the Roll Pins ] Service and Repair.
• Short roll pin: removing and installing, refer to => [ Roll Pin with Groove (Short Roll Pin): Removing and Installing ] Service and Repair.
• Long roll pin: sheared off at removal, refer to => [ Roll Pin without a Surrounding Groove (Long Roll Pin), Removing: Pressing out of the Differential Bevel Gear Axle ] Service and Repair.
• Long roll pin: installing, refer to => [ Roll Pin without a Surrounding Groove (Long Roll Pin), Installing ] Service and Repair.
21 Small Differential bevel Gear
• Installing, refer to => [ Installing the Differential Planetary Gears and Differential Bevel Gear Axle ] Service and Repair.
22 Large Differential Bevel Gear
• Installing, refer to => [ Installing the Differential Planetary Gears and Differential Bevel Gear Axle ] Service and Repair.
23 Seal
• For the left flange shaft.
• Removing and installing, refer to => [ Left Flange Shaft and Seal ] Left Flange Shaft and Seal.