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front and rear drive units. The unit is totally sealed The overrunning clutch allows the rear wheels to overrun the front wheels during a rapid front wheel The overrunning clutch housing has a separate oil sump and is filled independently from the differen- t ATF+4 (Automatic Transmission Fluid—Type 9602) or equivalent. The differential assembly contains a conventional open differential with hypoid ring gear and pinion DIAGNOSIS AND TESTING DIAGNOSIS AND TESTING - REAR DRIVELINE Different sources can be the cause of noise that the rear driveline module assembly is suspected of mak- DRIVELINE MODULE ASSEMBLY NOISE The most important part of driveline module ser- vice is properly identifying the cause of failures and If vehicle noise becomes intolerable, an effort should be made to isolate the noise. Many noises that • Tires • Road surfaces • Wheel bearings Fig. 1 AWD Driveline Module Assembly 1 - TORQUE ARM 8 - WASHER 15 - PLUG-OVERRUNNING CLUTCH 2 - INPUT FLANGE 9 - BI-DIRECTIONAL OVERRUNNING 16 - SNAP RING 3 - FLANGE NUT 10 - VISCOUS COUPLER 17 - BEARING 4 - WASHER 11 - SHIM (SELECT) 18 - OVERRUNING CLUTCH HOUSING 5 - SHIELD 12 - O-RING 19 - SEAL-INPUT FLANGE 6 - VENT 13 - DIFFERENTIAL ASSEMBLY 7 - O-RING 14 - PLUG-DIFFERENTIAL FILL 3a - 12 REAR DRIVELINE MODULE RG REAR DRIVELINE MODULE (Continued) |