Overhaul
DISASSEMBLY AND ASSEMBLY
CAUTION:
^ For vehicles with ABS, be careful not to damage the ABS rotor, which is attached to the BJ outer race during disassembly and reassembly.
^ Never disassemble the BJ assembly except when replacing the BJ boot.
LUBRICATION POINTS
DISASSEMBLY SERVICE POINTS
<> TJ CASE/SPIDER ASSEMBLY REMOVAL
CAUTION: Do not disassemble the spider assembly.
1. Wipe off grease from the spider assembly and the inside of the TJ case.
2. Clean the spider assembly if water or foreign material is observed.
<> TJ BOOT REMOVAL
1. Wipe off grease from the shaft spline.
2. When reusing the TJ boot, wrap plastic tape around the shaft spline to avoid damaging the boot.
REASSEMBLY SERVICE POINTS
>>A<< DYNAMIC DAMPER/DAMPER BAND/TJ BOOT INSTALLATION
1. Install the dynamic damper in the position shown in the illustration.
CAUTION: There should be no grease adhered to the rubber part of the dynamic damper. Be careful not to confuse the damper band with the TJ boot band (small). Locate the identification numbers stamped on the band levers.
2. Secure the damper bands.
3. Wrap plastic tape around the shaft spline, and then install the TJ boot band (small) and TJ boot.
>>B<< SPIDER ASSEMBLY/TJ CASE INSTALLATION
CAUTION: The driveshaft joint use special grease. Do not mix old and new or different types of grease. If the spider assembly has been cleaned, take special care to apply the specified grease.
1. Apply the specified grease furnished in the repair kit to the spider assembly between the spider axle and the roller.
Specified grease: Repair kit grease
2. Install the spider assembly to the shaft from the direction of the spline beveled section.
CAUTION: The driveshaft joint use special grease. Do not mix old and new or different types of grease.
3. After applying the specified grease to the TJ. case, insert the driveshaft and apply grease again.
Specified grease: Repair kit grease
Amount to use:
RH: 130 ± 10 g (4.6 ± 0.3 oz)
NOTE: The grease in the repair kit should be divided in half for use, respectively, at the joint and inside the boot.
>>C<< TJ BOOT BAND (SMALL)/TJ BOOT BAND (LARGE) INSTALLATION
Set the TJ. boot bands at the specified distance in order to adjust the amount of air inside the T.J. boot, and then tighten the TJ. boot bands securely.
Standard value (A): 85 ± 3 mm (3.3 ± 0.12 inch)
Part 1:
Part 2:
CAUTION:
^ For vehicles with ABS, be careful not to damage the ABS rotor, which is attached to the EBJ outer race during disassembly and reassembly.
^ Never disassemble the EBJ assembly except when replacing the EBJ boot.
LUBRICATION POINTS
DISASSEMBLY SERVICE POINTS
<> ETJ CASE/SPIDER ASSEMBLY REMOVAL
CAUTION: Do not disassemble the spider assembly.
1. Wipe off grease from the spider assembly and the inside of the ETJ case.
2. Clean the spider assembly if water or foreign material is observed.
<> INNER SHAFT REMOVAL
1. Use special tool MB991248 or MD998801 to remove the inner shaft assembly from the ETJ case.
2. Use special tool MB990810 to remove the center bearing bracket from the inner shaft.
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Use special tools MB990938 and MB990930 to remove the center bearing from the center bearing bracket.
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1. Wipe off grease from the shaft spline.
2. When reusing the ETJ boot, wrap plastic tape around the shaft spline to avoid damaging the boot.
ASSEMBLY SERVICE POINTS
>>A<< DYNAMIC DAMPER/DAMPER BAND/ETJ BOOT INSTALLATION
CAUTION: There should be no grease adhered to the rubber part of the dynamic damper.
1. Install the dynamic damper in the position (L) shown in the illustration.
L: 230 ± 3 mm (9.1 ± 0.12 inches)
2. Secure the damper bands.
3. Wrap plastic tape around the shaft spline, and then install the ETJ boot band (small) and ETJ boot.
>>B<< SPIDER ASSEMBLY INSTALLATION
CAUTION: The drive shaft joint use special grease. Do not mix old and new or different types of grease. If the spider assembly has been cleaned, take special care to apply the specified grease.
1. Apply the specified grease furnished in the repair kit to the spider assembly between the spider axle and the roller.
Specified grease: Repair kit grease
2. Install the spider assembly to the shaft from the direction of the spline chamfered side.
>>C<< CENTER BEARING INSTALLATION
Use special tools MB990938 and MB990932 to press-fit the center bearing into the center bearing bracket.
>>D<< DUST SEAL INNER/DUST SEAL OUTER INSTALLATION
CAUTION: When applying grease, make sure that it does not adhere to anything outside the lip.
1. Apply the specified grease to the rear surface of all dust seals.
Specified grease: Repair kit grease
Amount used (Dust seal inner): 14 - 20 g (0.5 - 0.7 ounce)
Amount used (Dust seal outer): 8 - 12 g (0.3 - 0.4 ounce)
2. Use special tools MB990890, MB990938, and MB990934 to press the dust seals into the center bearing bracket until they are flush with each other.
3. Apply repair kit grease to the lip of each dust seal.
>>E<< INNER SHAFT INSTALLATION
1. Use special tool MB991172 to hold the center bearing inner race, and then press-in the inner shaft.
2. Apply repair kit grease to the inner shaft spline, then press fit it into the ETJ case.
NOTE: When press-fitting the inner shaft into the ETJ case, apply a thin coat of repair kit grease to the dust seal outer lip part and the outside edge of the ETJ axial part.
>>F<< ETJ CASE INSTALLATION
CAUTION: The drive shaft joint use special grease. Do not mix old and new or different types of grease.
After applying the specified grease to the ETJ case, insert the drive shaft and apply grease again.
Specified grease:
Repair kit grease Amount to use
Amount to use
NOTE: The grease in the repair kit should be divided in half for use, respectively, at the joint and inside the boot.
>>G<< ETJ BOOT BAND (SMALL)/ETJ BOOT BAND (LARGE) INSTALLATION
Set the ETJ boot bands at the specified distance in order to adjust the amount of air inside the ETJ boot, and then tighten the ETJ boot band (small), ETJ boot band (large) securely.
Standard value (A): 80 ± 3 mm (3.15 ± 0.12 inches)
INSPECTION
^ Check the driveshaft for damage, bending or corrosion.
^ Check the driveshaft spline part for wear or damage.
^ Check the spider assembly for roller rotation, wear or corrosion.
^ Check the groove inside TJ case or ETJ case for wear or corrosion.
^ Check the dynamic damper for damage or cracking.
^ Check the boots for deterioration, damage or cracking.
^ Check the dust cover for damage or deterioration.