Note: Each time you remove the wishbone, check the condition of its ball joint and the reliability of its attachment to the steering knuckle (see Chapter 8, Section 5).
1. Remove the front wheels and place the front of the car on stands.
2. Loosen the nut (see accompanying illustration) and remove the clamp bolt securing the ball joint to the steering knuckle. Press the wishbone down and disconnect it from the steering knuckle. If necessary, use a suitable tool to loosen the clamp.
6.2. Nut (1) of the clamp bolt for fastening the ball joint to the steering knuckle - the arrow indicates the direction of pressing the transverse arm
3. Remove the hydraulic support mounting bolt to the subframe and the rear mounting bolt. Remove the arm from the subframe (see accompanying illustration).
6.3. Fastening the transverse arm assembly (4): 1. Bolt for fastening the hydraulic support to the subframe; 2. Rear arm mounting bolt; 3. Hydraulic support; 5. Ball joint mounting bolt; 6. Ball joint
4. If necessary, remove the ball joint from the lever (see illustration 6.3), for which drill out the rivets with a ∅ 10 mm drill.
5. Before installation, clean the mating surfaces and bolt holes on the arm and subframe. Lubricate the edges of the holes for installing the ball joint with an anti-corrosion compound or special paint.
6. The new ball joint must be secured with special bolts. The authors of this Manual strongly recommend using genuine Opel bolts for this purpose. The bolts should be inserted into the holes from above (see accompanying illustration).
6.6. Fastening a new ball joint to the wishbone
7. Fasten the wishbone to the subframe. Only new self-locking bolts should be used for fastening. Initially, the bolts fastening the inner support of the wishbone to the subframe are tightened by hand, and then, after installing and tightening the bolt of the clamp fastening the outer (ball) support of the wishbone, tighten with the required force (see Specifications).
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