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Some vehicles may exhibit an axle whine or hum during acceleration, deceleration and/or cruise. ACTION An axle repair kit has been developed which incorporates most parts required for a comprehensive axle repair. The kit should be used instead of installing a complete axle assembly to repair an axle whine/hum. Replace Ring and Pinion with Axle Kit and Components.
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SYMPTOM A squealing or moaning noise is heard from the rear of the vehicle when the front tires are slipping during acceleration or when the vehicle is turning. PROBABLE CAUSE Water entered the differential through the breather tube and contaminated the differential fluid. CORRECTIVE ACTION Flush the differential with new fluid and/or replace the differential clutch set. PARTS INFORMATION Breather Tube Assembly: P/N 41130-P6R-020 Differential Clutch Set: P/N 48010-P6R-305 Rear Differential Mounting Bracket: P/N 50710-S10-A01 Honda Dual Pump Fluid: P/N 08200-9002 DIAGNOSIS 1. Test-drive the vehicle on a dirt or gravel road. From a stop, accelerate hard to make the front tires slip. • If the rear differential makes noise, go to the REPAIR PROCEDURE. • If the rear differential does not make noise, go to step 2.2. Test-drive the vehicle in a circle on a paved, open parking lot at about 10 mph while holding the steering wheel in a full-lock position. • If the rear differential makes noise, go to the REPAIR PROCEDURE. • If the rear differential does not make noise, disregard this bulletin and troubleshoot other causes. REPAIR PROCEDURE 1. Start the engine. Hold the engine at 3,000 rpm with no load (in Park or Neutral) until the radiator fan comes on. 2. Raise the vehicle on a hoist. 3. Circulate the Dual Pump Fluid through the clutch assembly: • On A/T models: Apply the parking brake, put the transmission into D4, and let the vehicle idle for 5 minutes. • On M/T models: Put the transmission into 1st gear and engage the clutch. Slowly apply the parking brake until just before the engine stalls. Let the engine run like this for 5 minutes. 4. Engage both differential pumps: • On A/T models: Release the parking brake, and let the vehicle idle in D4 for 5 minutes. • On M/T models: Release the parking brake, and let the vehicle idle in 3rd or 4th gear for 5 minutes.
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1. Raise vehicle on hoist. 2. Remove brake line mounting nut and remove the brake line from the sensor stud. 3. Remove mounting stud from the sensor and shield. 4. Remove sensor and shield from differential housing. 5. Disconnect sensor wire harness and remove sensor. INSTALLATION 1. Connect harness to sensor. Be sure seal is securely in place between sensor and wiring connector. 2. Install O-ring on sensor (if removed). 3. Insert sensor in differential housing. 4. Install sensor shield. 5. Install the sensor mounting stud and tighten to 24 Nm (18 ft. lbs.). 6. Install the brake line on the sensor stud and install the nut. 7. Lower vehicle.
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Removal Procedure 1. 2. 3. 4. 5. 6. Raise the vehicle. Remove the tire and wheel assemblies. Remove the brake drums Remove the axle shafts. Remove the differential. Remove the drive pinion from the axle. 7. Press the bearing off of the pinion using theJ 22912-B . 8. Remove the shim. 9. Remove the drive pinion bearing cups from the axle housing using a hammer and a brass drift in the slots provided. Move the drift back and forth between one side of the cup and the other in order to work the cups out of the housing evenly. Installation Procedure 1. Install the outer pinion bearing cup using the J 8611-01 (8.6 inch axle) (2), or the J 7818 (9.5 inch axle) (2) and the J 8092 (1). 2. Install the inner pinion bearing cup using the J 8608 (8.6 inch axle) (2), or the J 22306 (9.5 inch axle) (2) and the J 8092 (1). 3. Determine the selective shim thickness for the pinion. 4. Install the selective shim between the inner pinion bearing and the shoulder on the gear. 5. Install the inner pinion bearing using the J 24433 (8.6 inch axle) or the J 36614 (9.5 inch axle). Press the bearing on until the cone seats on the pinion shim. 6. Install a new collapsible spacer. 7. Install the pinion into the axle housing. 8. Install the outer pinion bearing onto the pinion. 9. Install a new pinion oil seal and the pinion yoke. 10. Install the differential. 11. Install the brake drums. 12. Install the tire and wheel assemblies. 13. Fill the axle with lubricant. Use the proper fluid. 14. Lower the vehicle.
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This procedure applies to both the LH and RH halfshafts. Raise and support the vehicle. For additional information, refer to Section 100-02. 2. Remove the rear wheel and tire assembly. For additional information, refer to Section 204-04. 3. Remove and discard the rear axle wheel hub retainer. CAUTION: Do not begin this procedure unless: a new rear axle wheel hub retainer is available. a new axle circlip (4B422) is available. you have read Halfshaft Handling in this section. 4. Remove the rear brake anti-lock sensor. For additional information, refer to Section 206- 09A. 5. Remove the brake disc. For additional information, refer to Section 206-04. 6. Remove the nut and bolt. 7. Using the special tools, press the outboard CV joint until it is loose in the hub. 8. CAUTION: Do not over-angulate the outboard CV joint or damage the boot. While raising the knuckle, remove the CV joint from the hub. 9. Position the knuckle to gain clear access for the halfshaft removal. 10. CAUTION: The crown of the tool forks must face away from the axle housing. Position the special tool correctly between the CV joint and the axle housing so as not to damage the differential seal. Using the special tool, exert enough pressure to overcome the axle circlip (4B422) and separate the CV joint from the differential side gear.
