Nissan Sentra/Pulsar/NX 1982-1996 Repair Guide

Driveshaft

Print

REMOVAL & INSTALLATION



Sentra 4WD

See Figures 1, 2 and 3



Click image to see an enlarged view

Fig. Fig. 1: Exploded view of the driveshaft assembly



Click image to see an enlarged view

Fig. Fig. 2: Matchmark the driveshaft to the pinion flange before disassembly



Click image to see an enlarged view

Fig. Fig. 3: If disassembling the driveshaft, matchmark the two halves before separating

These models use a driveshaft with 3 U-joints and a center support bearing. The driveshaft is balanced as an assembly. It is not recommended that it be disassembled.


WARNING
It is extremely important to matchmark the driveshaft components to their mating surfaces, prior to disassembly. Failure to due so may result in a severe vibration problem, due to the misalignment of the driveline components.

  1. Raise and properly support the vehicle.
  2.  
  3. Mark the relationship of the driveshaft flange to the differential flange.
  4.  
  5. Unbolt the center bearing bracket.
  6.  
  7. Unbolt the driveshaft flange from the differential flange.
  8.  
  9. Pull the driveshaft back under the rear axle.
  10.  

To install:
  1. Align the mating marks made in Step 1 and install the driveshaft. Tighten the flange bolts to 17-24 ft. lbs. (22-30 Nm).
  2.  
  3. Install the center bearing bracket and tighten the fasteners to 26-35 ft. lbs. (35-45 Nm).
  4.  
  5. Lower the vehicle.
  6.  

U-JOINT REPLACEMENT



See Figure 4



Click image to see an enlarged view

Fig. Fig. 4: Inspect the journal play as shown

The driveshaft universal joints are not serviceable. Inspect the journal axial play and if it exceeds 0.00 inches, replace the driveshaft assembly.

DRIVESHAFT BALANCING



See Figure 5



Click image to see an enlarged view

Fig. Fig. 5: Inspect the driveshaft run-out as shown

If vibration is present at high speed, inspect the driveshaft run-out first.

  1. Raise the vehicle and support safely.
  2.  
  3. Measure the driveshaft run-out at several points by rotating the final drive companion flange by hand.
  4.  
  5. If the run-out exceeds 0.024 in. (0.6mm), disconnect the driveshaft at the final drive and rotate the companion flange 180 degrees and reinstall.
  6.  
  7. If the run-out still exists, run the driveshaft at about 30 miles per hour (48 kp/h) with the rear wheels off the ground and support safely.
  8.  
  9. Use a jackstand to steady a light colored pencil.
  10.  
  11. As the driveshaft rotates, mark the high spots on the driveshaft.
  12.  
  13. Place 2 hose clamps around the driveshaft opposite the high spot and recheck. Move the clamps around to try to balance the shaft.
  14.  
  15. If 2 clamps does not correct the vibration, replace the driveshaft, center bearing or U-joints.
  16.  

 
label.common.footer.alt.autozoneLogo