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A torsion bar suspension, also known as a torsion spring suspension , is a general term for any vehicle suspension that uses a torsion bar as its main weight bearing spring. One end of a long metal bar is attached firmly to the vehicle chassis; the opposite end terminates in a lever, the torsion key, mounted perpendicular to the bar, that is attached to a suspension arm, a spindle, or the axle. Vertical motion of the wheel causes the bar to twist around its axis and is resisted by the bar's torsion resistance. The effective spring rate of the bar is determined by its length, cross section, shape, material, and manufacturing process.

A torsion bar with no load applied.
A torsion bar with a load applied.
A front VW Beetle suspension cross-section

A torsion bar suspension, also known as a torsion spring suspension (but not to be confused with torsion beam rear suspension), is a general term for any vehicle suspension that uses a torsion bar as its main weight bearing spring. One end of a long metal bar is attached firmly to the vehicle chassis; the opposite end terminates in a lever, the torsion key, mounted perpendicular to the bar, that is attached to a suspension arm, a spindle, or the axle. Vertical motion of the wheel causes the bar to twist around its axis and is resisted by the bar's torsion resistance. The effective spring rate of the bar is determined by its length, cross section, shape, material, and manufacturing process.

Lift Your Truck for Free via a T Bar Crank (torsion bar)

How to lift a truck. This video shows you how to lift your truck with torsion bars also known as a T bar lift. This tbar lift is done on a 2001 Mazda B3000 / Ford ...

Suspension 101 From Superlift - Part 1: Torsion Bar Suspension

Superlift's Larry Conville gives a brief primer on torsion bar suspension, how they work and how they are "lifted".

How to Replace Torsion Bar 98-12 Ford Ranger

1A Auto shows you how to repair, install, fix, change or replace your worn out or bad torsion bar. This video is applicable 01 Ford Ranger List of tools used: ...

TORSION BAR SUSPENSION LIFTS EXPLAINED

Talking about how t-bar suspension works and how you can use it to lift your truck.

How to replace torsion bar mounts - Loud banging noise under truck - FIXED! - Silverado - Sierra

This 2003 GMC Sierra was making a loud banging and clunking noise underneath the vehicle. I need to replace the torsion bar mounts (Dorman 905-506).

Schroeder Series Torsion Bars and Sway Bars - How It's Made

Take a behind the scenes look at the manufacturing process of our Schroeder Series torsion bars and sway bars. From raw material to the shipping department, ...