Volvo 240/740/760/780/940/960 1990-1998

Lower Control Arms

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REMOVAL & INSTALLATION



Except 850, 960 Sedan and 1998 Models
  1. Raise and safely support the vehicle on the frame and remove the rear wheels.
  2.  
  3. Place a hydraulic jack beneath the rear axle housing and raise the housing sufficiently to compress the spring and shock.
  4.  
  5. Install a compressor on the spring and tighten. Make sure there are at least 3 coils of spring between the attachment points of the compressor.
  6.  
  7. Remove the lower shock attachment bolts and nut.
  8.  
  9. Lower the rear axle and remove the spring.
  10.  
  11. Remove the sway bar from the trailing arms, if equipped.
  12.  
  13. Remove the axle-to frame through-bolt securing the trailing arm to the vehicle body.
  14.  
  15. Loosen and remove the through bolt securing the trailing arm to the rear axle.
  16.  
  17. With the rear axle firmly supported, remove the trailing arm.
  18.  

To install:
  1. Install the control arm on the axle housing and tighten the bolt finger-tight.
  2.  
  3. Raise the assembly into position and install the axle-to-frame bolts finger-tight.
  4.  
  5. Install the shock and coil spring.
  6.  
  7. Tighten all control arm bolts to 85 ft. lbs. (115 Nm).
  8.  
  9. Install the wheels.
  10.  
  11. Lower the vehicle.
  12.  

1992-94 960 Sedan

Multi-Link suspensions require alignment any time the suspension components are disassembled. Installation tightening and torque procedures are critical to correct alignment.

  1. Raise and support the vehicle safely. Make sure the front supports are placed as far forward as possible. Check that the rear supports will not interfere with the support arm.
  2.  
  3. Remove the wheels.
  4.  
  5. Loosen and remove the bolts holding the protective guard to the arm and remove the guard.
  6.  
  7. At the front of the arm, remove the two retaining bolts which hold the bracket (for the control arm) to the frame. Do not attempt to remove the through-bolt.
  8.  
  9. Remove the retaining bolt at the rear of the control arm.
  10.  
  11. Separate the rear end of the control arm from the wheel bearing housing.
  12.  
  13. Using either Volvo tool 5972 or two floor jacks, support the arm at the front and rear ends. Raise the jacks just enough to relieve the tension on the shock absorber.
  14.  
  15. Remove the retaining bolt at the top of the shock absorber.
  16.  
  17. Lower the jacks slowly; the arm will come free with the spring and shock attached.
  18.  
  19. Unbolt the shock absorber from the arm, then unbolt and remove the bracket at the front of the arm. Take note of the relationship between the bracket and the arm: the bracket correctly mounts one way only.
  20.  

To install:
  1. Install the control arm bracket in the correct position and tighten the nut to 91 ft. lbs. (125 Nm) plus and additional 120 degrees of rotation.
  2.  
  3. Install the shock absorber on the arm and tighten the bottom mount to 41 ft. lbs. (56 Nm).
  4.  
  5. Install the bottom spring seat on the control arm. Take care to properly locate the grooves in the seat.
  6.  
  7. Install the spring and the top rubber seat. Place the assembled support arm on the jacks and raise into position.
  8.  
  9. Gently raise the jacks and compress the spring until the shock absorber is in the correct position. Install the shock.
  10.  
  11. Reinstall the mounting bolts at the front of the control arm bracket. Tighten the bolts to 35 ft. lbs. (48 Nm) and the large nut to 51 ft. lbs. (70 Nm) plus an additional 90 degrees of rotation.
  12.  
  13. At the rear of the control arm, tap the arm into place on the wheel bearing housing. Tighten the bolt to 44 ft. lbs. (60 Nm) plus an additional 90 degrees of rotation. Do not overtighten this fitting.
  14.  
  15. Reinstall the protective cover on the control arm. Install the wheel.
  16.  
  17. Lower the vehicle to the ground and final tighten the lugs to 62 ft. lbs. (85 Nm).
  18.  
  19. Roll the vehicle several feet forwards and backwards before adjusting the rear wheel alignment.
  20.  

1995-98 960/S90/V90

Multi-Link suspensions require alignment any time the suspension components are disassembled. Installation tightening and torque procedures are critical to correct alignment.

  1. Raise and support the vehicle safely. Make sure the front supports are placed as far forward as possible. Check that the rear supports will not interfere with the support arm.
  2.  
  3. Install compression tool Kent-Moore® No. J-41470 (or equivalent):
    1. Attach one end of the tool yoke into the boss on one side of the axle support beam.
    2.  

  4.  

There is a boss cast into the support on either side of where the spring is visible from underneath.

  1. Slide the tool into the boss on the other side of the axle support beam to fully engage the yoke.
  2.  
  3. Make sure the tool is seated between the retaining tabs before any suspension components can be removed.
  4.  
  5. Make sure the rollers on the ends of the tool are positioned inside the lower control arms.
  6.  
  7. Turn the handle to raise the control arms and compress the leaf spring.
  8.  


CAUTION
Do not tighten the tool after the pegs have contacted the axle support beam.

  1. Once the spring is compressed, components can be removed.
  2.  

  1. Compress the suspension slightly.
  2.  
  3. Removed the shock absorber mounting bolt from the rear support arm.
  4.  
  5. Remove the sway bar-to-support arm bolts on both sides. Press the sway bar up away from the rear support arms.
  6.  
  7. Press the suspension up to normal position, as if the vehicle were on the ground.
  8.  
  9. Remove the bolt s at the front of the support arm bracket.
  10.  
  11. Remove the support arm-to-wheel bearing housing bolt.
  12.  
  13. Loosen the support arm bracket nut a few turns. Tap the support arm off the wheel bearing housing.
  14.  
  15. Remove the support arm bracket nut and the support arm with the bracket attached. Do not remove the support arm-to-bracket through-bolt.
  16.  
  17. Remove the brake caliper and hang it up with steel wire. Do not allow the caliper to hang by the brake hose.
  18.  
  19. Remove the lower control arm-to-wheel bearing housing nut. Tap out the bolt with a brass punch.
  20.  
  21. Loosen the inboard lower control arm mounting nut until approximately 0.04-0.08 in. (1-2mm) of the bolt still protrudes from the nut. Tap the bolt with a brass punch until the nut contacts the lower control arm.
  22.  
  23. Lower the compression tool and control arm completely. Inspect the spring mounting in the lower control arm. Retain the mountings in the control arm for assembly.
  24.  
  25. Remove the inboard lower control arm mounting nut. Tap out the bolt with a brass punch. Tap the lower control arm off the lower rear axle support beam.
  26.  
  27. Inspect the lower control arm bushings for damage or wear.
  28.  

To install:
  1. Install the lower control arm onto the lower rear axle support beam with a new nut and bolt. Do not tighten. Install the spring into the mounting in the control arm.
  2.  
  3. Use the compression tool to raise the control arms up to their normal position.
  4.  
  5. Install the lower control arm to the wheel bearing housing, using a new nut. Tighten both ends of the control arm to 59 ft. lbs. (80 Nm).
  6.  
  7. Install the brake caliper with new bolts and tighten to 44 ft. lbs. (60 Nm).
  8.  
  9. Install the rear support arm using new bolts and nut. Do not tighten bolts and nut.
  10.  
  11. Tighten the rear bolt and front nut to 59 ft. lbs. (80 Nm). Tighten the front bolts to 37 ft. lbs. (50 Nm).
  12.  
  13. Install the shock absorber:
    1. If equipped with standard shock absorbers, compress the shock by hand. Install a new bolt and tighten to 59 ft. lbs. (80 Nm).
    2.  
    3. If equipped with self-leveling shock absorbers, lower the compression tool. Install a new bolt and tighten to 59 ft. lbs. (80 Nm).
    4.  

  14.  
  15. Lower the sway bar into position and install new sway bar-to-support arm bolts, but do not tighten.
  16.  
  17. Install the wheels.
  18.  
  19. Lower the vehicle.
  20.  
  21. Tighten the sway bar bolts to 59 ft. lbs. (80 Nm).
  22.  
  23. Check wheel alignment and test drive vehicle.
  24.  

V70 AWD Models
  1. Raise and safely support the vehicle.
  2.  
  3. Remove the shocks.
  4.  
  5. Remove the spring.
  6.  
  7. Remove the support arm from the control arm.
  8.  
  9. Remove the control arm from the vehicle.
  10.  

To install:
  1. Install the control arm.
  2.  
  3. Install the support arm onto the control arm and tighten the bolt to 59 ft. lbs. (80 Nm).
  4.  
  5. Install the spring.
  6.  
  7. Install the shocks.
  8.  
  9. Lower the vehicle.
  10.  

 
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