REMOVAL & INSTALLATION
200SX and 240SX
See Figures 1, 2, 3 and 4
These models use a driveshaft with three U-joints and a center support bearing. The driveshaft is balanced as an assembly.
- Raise and safely support the vehicle.
- Matchmark the flanges on the driveshaft and differential so the driveshaft can be reinstalled in its original orientation; this will help maintain drive line balance.
- Unbolt the rear flange and the center bearing bracket.
- Withdraw the driveshaft from the transmission and pull the driveshaft down and back to remove.
- Plug the transmission extension housing to prevent oil leakage.
- Lubricate the sleeve yoke splines with clean engine oil prior to installation. Insert the driveshaft into the transmission and align the flange matchmarks.
- Install the flange and the center bearing bolts.
- On 200SX and 240SX, torque the center bearing support bracket bolts to 19-29 ft. lbs.
- On 200SX with CA20E and VG30E engines, torque the flange bolts to 29-33 ft. lbs. (39-44 Nm) and on the 240SX torque to 29-33 ft. lbs. (39-44 Nm).
- Mark the relationship of all components for reassembly.
- Remove the snap-rings. On early units, the snap-rings are seated in the yokes. On later units, the snap-rings seat in the needle bearing races.
- Tap the yoke with brass or rubber mallet to release one bearing cap. Be careful not to lose the needle rollers.
- Remove the other bearing caps. Remove the U-joint spiders from the yokes.
- Spline backlash should not exceed 0.5mm.
- Driveshaft run-out should not exceed 0.6mm.
- On later model with snap-rings seated in the needle bearing races, different thickness of snap-rings are available for U-joint adjustment. Play should not exceed 0.02mm.
- U-joint spiders must be replaced if their bearing journals are worn more than 0.15mm from their original diameter.
- Place the needle rollers in the races and hold them in place with grease.
- Put the spider into place in its yokes.
- Replace all seals.
- Tap the races into position and secure them with snap-rings.
To check and correct an unbalanced driveshaft, proceed as follows:
- Remove the undercoating and other foreign material which could upset shaft balance. Roadtest the vehicle.
- If vibration is noted, disconnect driveshaft at differential carrier companion flange, rotate companion flange 180° degrees and reconnect the driveshaft.
- Roadtest the vehicle, if vibration still exists replace driveshaft assembly. Note that driveshaft should be free of dents or cracks and run-out should not exceed 0.6mm.