Lower Control Arm And Tie Bar

Lower control arm 

The lower control arm is a hollow aluminium casting with a bush and cross-axis joint pressed into the inner section of the arm which provides for the attachment to the subframe. The bush and cross-axis joint are located between brackets on the subframe and secured with bolts and nuts. The lower control arm has a platform which provides for the attachment for the coil spring and a location hole for the attachment of the stabilizer-bar link and height sensor.

The outer section of the lower control arm has a clevis which attaches to the rearward end of the wheel knuckle. A bush at the forward end of the lower control arm attaches to the wheel knuckle's rear bush by an integral link which provides castor control.

Integral link 

The integral link comprises two pressed steel plates which connect the lower control arm and wheel knuckle.

Tie arm 

The tie arm is manufactured from forged-aluminium with one end having a bush pressed into a machined bore.

The inner bush locates between brackets on the subframe and is secured with a special eccentric bolt, washer and nut. This allows for the adjustment of the rear wheel toe. Rotation of the bolt moves the eccentric head within a recessed slot in the bracket, allowing the toe to be adjusted within the set limits. The outer end of the tie arm has a clevis for attachment to the wheel knuckle.