Opel Frontera UE. Manual - part 661

3C–8

FRONT SUSPENSION

3. Apply the setting marks(2) to the height control arm 

and torsion bar, then remove height control arm.

410RS005

4. Apply the setting marks(3) to the torsion bar and 

lower control arm, then remove torsion bar. 

410RS006

Inspection and Repair

Make necessary correction or parts replacement if 
wear, damage, corrosion or any other abnormal 
condition are found through inspection. 
Check the following parts:

• Torsion bar

• Height control arm

• Adjust bolt

• Rubber seat 

Installation

1. Apply grease to the serrated portions, then install 

torsion bar. Make sure the bars are on their correct 
respective sides and align the setting marks(3).

410RS007

410RS006

FRONT SUSPENSION

3C–9

2. Apply grease to the portion that fits into the bracket 

then install height control arm and align the setting 
marks(2).

410RS005

3. Apply grease to the bolt portion of the end piece(4).  

Apply grease to the portion of the seat(5) that fits 
into the bracket.

410RS008

4. Apply grease to the serrated portions.

5. Install adjust bolt and seat, then turn the adjust bolt 

to the setting mark(1) applied during disassembly. 

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

410RS004

3C–10

FRONT SUSPENSION

Knuckle

Knuckle and Associated Parts

410RW006

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 brake caliper. Refer to Disc Brakes in 

Brake section.

4. Remove the hub assembly. Refer to Front Hub and 

Disk in this section.

5. Remove tie–rod end from the knuckle. Refer to 

Power Steering Unit in Steering section.

6. Remove the speed sensor from the knuckle.

7. Loosen torsion bar by height control arm adjust bolt, 

then remove torsion bar. Refer to Torsion Bar in this 
section. 

(1) Torsion Bar
(2) Lower Ball Joint
(3) Back Plate
(4) Knuckle Assembly
(5) Knuckle

(6) Needle Bearing
(7) Thrust Washer
(8) Oil Seal
(9) Upper Ball Joint

(10) Wheel Speed Sensor

FRONT SUSPENSION

3C–11

8. Remove wheel speed sensor.

9. Remove back plate.

10. Remove lower ball joint by using remover 5–8840–

2005–0.

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

901RW271

11. Remove upper ball joint by using remover 5–8840–

2121–0.

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

901RW273

12. Remove knuckle assembly.

13. Remove oil seal.

14. Remove washer.

15. Remove needle bearing by using remover 5–8840–

2000–0 and sliding hammer 5–8840–0019–0.

901RW272

Inspection and Repair

Make necessary correction or parts replacement if 
wear, damage,  corrosion or any other abnormal 
condition are found through inspection.
Check the following parts:

• Knuckle

• Knuckle  arm

• Needle bearing

• Thrust washer

Installation

1. Apply appropriate amount of multipurpose type 

grease to the new bearing  (Approx. 5 g) and install 
needle bearing by using installer 5–8840–2128–0 
and grip 5–8840–0007–0.

901RW275