Isuzu Cars and Trucks 1981-1991

Front Driveshaft and CV-Joint

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REMOVAL AND INSTALLATION
P'up, Amigo, Trooper and Rodeo
  1. Raise and safely support the vehicle.
  2.  
  3. Disconnect the front driveshaft from the differential.
  4.  
  5. Remove the wheels and skid plate.
  6.  
  7. Loosen the torsion bar completely with the height control adjusting bolts.
  8.  
  9. Remove the strut bars.
  10.  
  11. Disconnect the stabilizer bars from the lower control arms.
  12.  
  13. Remove the caliper assemblies and wire them to the frame; do not disconnect the brake lines.
  14.  
  15. Remove the ball joints from the tie rods.
  16.  
  17. Disconnect the upper control arms from the frame; make sure to note the number and positions of the shims.
  18.  
  19. Remove the steering link ends from the lower control arms.
  20.  
  21. Disconnect the shock absorbers from the lower control arms.
  22.  
  23. Disconnect the lower control arms from the frame.
  24.  
  25. Remove the locking hub.
  26.  
  27. Remove the rotors and upper links.
  28.  
  29. Remove the pitman arm and idler arm along with the steering linkage assembly.
  30.  
  31. Support the differential housing and lower it clear of the vehicle. Take care to avoid damaging the Birfield joints.
  32.  
  33. Drain the differential case and remove the 4 bolts attaching the axle mounting bracket to the case.
  34.  
  35. Pull the shaft assemblies from the case on both sides.
  36.  



Click image to see an enlarged view

Fig. Front drive axle and CV-joint

To install:

  1. Install the axle assembly and 4 bolts attaching the axle mounting bracket to the case.
  2.  
  3. Install the pitman arm and idler arm along with the steering linkage assembly.
  4.  
  5. Install the rotors and upper links.
  6.  
  7. Install the locking hub.
  8.  
  9. Connect the lower control arms to the frame.
  10.  
  11. Connect the shock absorbers to the lower control arms.
  12.  
  13. Install the steering link ends to the lower control arms.
  14.  
  15. Connect the upper control arms to the frame; make sure to note the number and positions of the shims.
  16.  
  17. Install the ball joints to the tie rods.
  18.  
  19. Install the caliper assemblies.
  20.  
  21. Connect the stabilizer bars to the lower control arms.
  22.  
  23. Install the strut bars.
  24.  
  25. Tighten the torsion bar completely with the height control adjusting bolts to their original position.
  26.  
  27. Install the wheels and skid plate.
  28.  
  29. Connect the front driveshaft to the differential.
  30.  
  31. Lower the vehicle and check operation. Refill the differential with fluid. Bleed the brake system if needed.
  32.  

4-Wheel Drive Impulse

Refer to the "Halfshaft" procedures in this Section.

CV-JOINT OVERHAUL
Double Offset Joint
DISASSEMBLY
  1. Disconnect the negative battery cable. Clean the assembly of all grease and dirt.
  2.  
  3. Remove the inner joint boot clamps. Slide the boot off of the joint.
  4.  
  5. From inside the inner joint, remove the circular clip from inside the offset joint. Pull the joint and shaft off of the inner joint.
  6.  
  7. Remove the ball retainer snapring and ball retainer. Pull the ball retainer and ball book from the splined shaft.
  8.  
  9. Remove the boots and vibration damper, if so equipped.
  10.  

The outer (Birfield) joint is not serviceable, it must be replaced as an assembly.

  1. Clean all grease and dirt from the joints.
  2.  



Click image to see an enlarged view

Fig. Remove the snapring and ball retainer

ASSEMBLY
  1. With the Birfield joint bent at a 40and#x00B0; angle, turn the shaft and make sure that it turns smoothly and normally.
  2.  
  3. Place tap on the splines to prevent damage to the joint boots.
  4.  
  5. Install the outer boot and clamps onto the outer shaft.
  6.  
  7. Fill the joint and boot with new CV-joint grease and install new clamps.
  8.  
  9. Install the inner joint boot and vibration damper, if so equipped.
  10.  
  11. Install the ball retainer, guide and snapring.
  12.  
  13. Fill the boot and off-set joint with new grease and install joint.
  14.  
  15. Install the circular clip into the groove.
  16.  
  17. Slide the boot onto the joint, insert a tool under the boot lip to allow the pressure to equalize and tighten the new clamps.
  18.  
  19. Install the shaft into the vehicle as outlined in this Section.
  20.  



Click image to see an enlarged view

Fig. Assembly of double offset CV-joint

 
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