TRD sway bar for sedan

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Originally Posted by Yaris TTE JWRC

A rear sway bar on a torsion beam rear suspension is really not doing anything, because the torsion beam rear suspension is already bulided in one piece, what the torsion beam rear suspension need is a rear sturt bar that goes on top of both rear shocks in the back cabin to really help to reduce body roll, just like what the front sturt bar does and goes under the hood.

That is 100% wrong.

Strut bars do not decrease body roll, they decrease chassis flex. Also, you don't understand the difference between a strut and a shock. A strut is a load bearing member of the suspension. If you remove it the car will not be able to sit on its wheels. A shock is non load bearing, and if you removed it alone, the car would still sit on its wheels.

The very essence of a torsion beam suspension is based on lateral flex. Anything you put on the beam (a swaybar) to reduce the flex of the arms will decrease body roll. Actually, This type of suspension responds BETTER to a sway bar than other types because the bar is bolted directly to the arms, no endlinks, no bushings, nothing to dampen the bar.

Hope this helps.

Ashley