Frequently Asked Questions (FAQs)
1. What cars use torsion bars?
Torsion bar suspensions are used in various vehicles such as combat vehicles, tanks, trucks, and SUVs. Some examples include the T-72, Leopard 1, Leopard 2, M26 Pershing, M18 Hellcat, M48 Patton, M60 Patton, and M1 Abrams tanks. Additionally, torsion bars are used in trucks and SUVs from manufacturers like Ford, Chrysler, GM, Mitsubishi, Mazda, Nissan, and Isuzu.
2. What are torsion bars good for?
Torsion bars have multiple applications, with one of the most common being in vehicle suspensions. They absorb shock to provide a smooth and comfortable ride. Torsion bars also serve as the primary weight-bearing spring, connecting the body of the vehicle with the wheel axle.
3. What are the symptoms of a bad torsion bar?
Symptoms of a bad torsion bar include changes in the vehicle's resting height, which can cause other suspension components to experience excessive wear, produce unwanted noises, or result in a stiffer suspension feel.
4. Do torsion bars affect steering?
Yes, torsion bars can affect steering. By using different size torsion bars, the amount of effort required to turn the steering wheel can be adjusted.
5. When did Chevy stop using torsion bars?
Chevy switched from using torsion bar front suspensions in its two-wheel-drive trucks to a coil-spring front end in 1963.
6. Can you lift a car with torsion bars?
Yes, torsion bars can be adjusted to increase ride height. This adjustment can typically be done with a wrench, allowing for a safe lift of about 2 to 3 inches.
7. How often should you replace torsion bars?
The lifespan of torsion bars can vary. Most torsion springs last for around 10,000 cycles, which can translate to nearly a decade or just a few years depending on usage.
8. Can you drive without torsion bars?
It is possible to drive without torsion bars, especially if the lower control arm (LCA) bushings are in good condition. However, torsion bars do play a role in holding the LCA in place and can impact handling. Some car owners have successfully driven without torsion bars, but others opt for alternative suspension systems like air ride for specific purposes.