Dismantling
1. Raise the vehicle on a four post lift.
2. Raise one wheel on each axle, if necessary, to rotate them to gain access to the driveshaft mounts.
ATTENTION: When working with cardan shafts:
- The propeller shaft and viscous coupling must only be removed as an assembly. Dismantling viscous couplings can damage them.
- Do not unscrew the bolts of the viscous coupling support bearings from the body without first unscrewing the cardan shafts from the differential and transfer case. The weight of the middle section will stretch the viscous coupling in different directions, causing permanent damage.
- Do not bend the viscous coupling. This will cause failure of the internal roller bearings, increased clearance and failure of the viscous coupling.
3. To facilitate subsequent assembly, mark the relative position on the flanges of the cardan shaft.
4. Remove the 6 bolts and nuts with shrink washers that secure the viscous coupling to the transfer case flange.
5. Pull the viscous coupling housing away from the transfer case flange. If necessary, put a terminal clamp on the viscous coupling body and move the coupling away from the transfer case flange, resting the lever against the clamp. Support the front of the driveshaft.
6. Turn away 4 nuts with bolts of fastening of the propeller shaft to the rear axle flange, move the propeller shaft away from the rear axle flange and support it.
7. Turn away 4 bolts of fastening of basic bearings of a viscous coupling.
WARNING: It is essential that the weight of the coupling and propeller shaft be supported by props.
8. With the help of a partner, remove the cardan shaft assembly.
Installation
1. Clean the driveshaft flanges and mating surfaces.
2. With the help of a partner, install the driveshaft assembly in place, propping it up front and back.
3. Install the viscous coupling support bearing bolts, but do not tighten them at this stage.
4. Install the cardan shaft on the rear axle and align the marks of the relative position.
5. Install the bolts with nuts securing the propeller shaft rear flange and tighten them to a torque of 65 Nm.
6. Install the cardan shaft on the transfer case flange and align the marks of the relative position.
7. Install the bolts with nuts securing the front flange of the cardan shaft to the transfer case and tighten them to a torque of 40 Nm.
8. Install the thrust bearings at 90 degrees to the axle as shown at points 'A' and 'B', tighten the rear bearing bolts and then the front bearing bolts. Tightening torque 28 Nm.
9. Lower the wheels.
10. Lower the car.
Comments on this article