Opel Frontera UE. Manual - part 664

3C–20

FRONT SUSPENSION

14. Install front nut then tighten lower link nut 

finger-tight.

NOTE:  Torque lower control arm nut after adjusting 
buffer clearance .

Buffer clearance: 22mm (0.87in)

Torque: 190N·m (19.4kg·m/140lbft)

NOTE:  Adjust the trim height. Refer to Front End 
Alignment Inspection and Adjustment in Steering 
section.

450RS012

FRONT SUSPENSION

3C–21

Upper Ball Joint

Upper Ball Joint and Associated Parts

450RW004

Legend

EndOFCallout

Removal

1. Raise the vehicle and support the frame with 

suitable safety stands.

2. Remove the speed sensor from the knuckle. 

(1) Bolt and Nut
(2) Upper Ball Joint 

(3) Nut and Cotter Pin

3C–22

FRONT SUSPENSION

3. Remove upper ball joint nut and cotter pin, then use 

remover 5–8840–2121–0 to remove the upper ball 
joint from the knuckle.

CAUTION:  Be careful not to damage the ball joint 
boot.

901RW273

4. Remove bolt and nut.

5. Remove upper ball joint.

Inspection and Repair

Make necessary parts replacement if wear, damage, 
corrosion or any other abnormal conditions are found 
through inspection.

• Inspect the lower end boot for damage or grease 

leak.  Move the ball joint as shown in the figure to 
confirm its normal movement.

• Inspect screw/taper area of ball for damage.

• If any defects are found by the above inspections, 

replace the ball joint assembly with new one. 

450RS023

• After moving the ball joint 4 or 5 times, attach nut 

then measure the preload.

Starting torque: 0.5 –3.2N·m (0.05–0.33kg·m/0.4–
2.4 lbft)

450RS024

If the above limits specified are exceeded, replace the 
ball joint assembly. 

Installation

1. Install upper ball joint.

2. Install bolt and nut, then tighten them to the 

specified torque.

Torque: 57N·m (5.8kg·m/42lbft)

3. Install nut and cotter pin, then tighten the nut to the 

specified torque with just enough additional torque  
to align cotter pin holes. Install new cotter pin.

Torque: 98N·m (10.0kg·m/72lbft)

FRONT SUSPENSION

3C–23

Lower Ball Joint

Lower Ball Joint and Associated Parts

450RW011

Legend

EndOFCallout

Removal

1. Raise the vehicle and support the frame with 

suitable safety stands.

2. Remove wheel and tire assembly. Refer to Wheel in 

this section.

3. Remove the tie-rod end from the knuckle. Refer to 

Power Steering Unit in Steering section. 

4. Remove the retaining ring from the front axle driving 

shaft to release the shaft from hub. Refer to Front 
Hub and Disc in Driveline/Axle section.

5. Support lower control arm with a jack. 

6. Remove lower ball joint nut and cotter pin, then use 

remover 5–8840–2005–0 to remove the lower ball 
joint from the knuckle.

CAUTION:  Be careful not to damage the ball joint 
boot.

901RW271

(1) Bolt
(2) Lower Ball Joint

(3) Nut
(4) Nut and Cotter Pin