Torsilastic control arm bushings must be torqued at which height?

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Multiple Choice

Torsilastic control arm bushings must be torqued at which height?

Tightening the torsilastic control arm bushings at curb height ensures the bushing preload matches the vehicle’s normal resting condition. The rubber/torsion element is designed to be preloaded as the suspension sits at its typical static load, so torquing at curb height places the arm and bushing in the position they will occupy in daily driving. If you torque at a different height, the bushing preload can be wrong once the car is on the ground, leading to binding, misalignment, or premature wear. In other words, curb height reflects the actual operating geometry of the suspension under normal weight on the vehicle, which is why it’s used for torquing these bushings.

Tightening the torsilastic control arm bushings at curb height ensures the bushing preload matches the vehicle’s normal resting condition. The rubber/torsion element is designed to be preloaded as the suspension sits at its typical static load, so torquing at curb height places the arm and bushing in the position they will occupy in daily driving. If you torque at a different height, the bushing preload can be wrong once the car is on the ground, leading to binding, misalignment, or premature wear.

In other words, curb height reflects the actual operating geometry of the suspension under normal weight on the vehicle, which is why it’s used for torquing these bushings.

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