Turning torsion bar to lower rear?

Cuda Al said

The way I look at it is that look at it like a teeter-totter with the rear wheels being the fulcrum. If you jack the front 1" at the control arm the rear bumper will go down maybe 1/8" ( I haven't done the math).
Changing the front relative ride height isn't changing the load on any of the springs just the relative height of the wheel to the springs.


Alan

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It is actually changing the load on the springs. Raising the front end of the car shifts the center of gravity toward the rear. That changes the weight balance from front to rear, and adds load on the rear springs while removing it from the front.

Small changes in ride height at one end may not make significant changes in ride height at the other end, but it will change the corner loads if you're checking those with 4 corner scales.

This is why drag racers spend so much effort getting the front end to lift easily on acceleration, because the weight transfer to the rear improves traction. That's literally because the load on the rear springs is increasing.