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REAR AXLE TABLE OF CONTENTS page page REAR AXLE . . . . . . . . . . . . . . . . 12 STANDARD PROCEDURE - DRAIN AND FILL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 . . . . . . . . . . . . . . . . . . . . . . . . . 16 . . . . . . . . . . . . . . . . . . . . . . . 18 . . . . . . . . . . . . . . . . . . . . . . . 19 SHAFT-AXLE SINGLE REAR WHEEL INSTALLATION-SINGLE REAR WHEEL BEARING/SEAL-AXLE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 . . . . . . . . . . . . . . . . . . . . . . . . . 26 SHAFT-AXLE DUAL REAR WHEELS BEARING/SEAL-AXLE HUB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 . . . . . . . . . . . . . . . . . . . . . . . . . 29 DIFFERENTIAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 . . . . . . . . . . . . . . . . . . . . . . . . . 37 BEARINGS-DIFFERENTIAL CASE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 . . . . . . . . . . . . . . . . . . . . . . . . . 38 SEAL-PINION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 . . . . . . . . . . . . . . . . . . . . . . . . . 40 GEAR-PINION/RING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 . . . . . . . . . . . . . . . . . . . . . . . . . 42 REAR AXLE DIAGNOSIS AND TESTING NOTE: Axle seals, axle bearings, pinion seals and GEAR NOISE Axle gear noise can be caused by insufficient lubri- cant, incorrect backlash, incorrect pinion depth, tooth Gear noise usually happens at a specific speed range. The noise can also occur during a specific type When road testing, first warm-up the axle fluid by driving the vehicle at least 5 miles and then acceler- • Check for insufficient lubricant. • Incorrect ring gear backlash. • Gear damage. by turning the vehicle. They usually do not cause noise during straight-ahead driving when the gears BEARING NOISE The axle shaft, differential and pinion bearings can all produce noise when worn or damaged. Bearing Pinion bearings have a constant-pitch noise. This noise changes only with vehicle speed. Pinion bearing Differential bearings usually produce a low pitch noise. Differential bearing noise is similar to pinion Axle shaft bearings produce noise and vibration when worn or damaged. The noise generally changes 3 - 12 REAR AXLE VA |