Torsion Bars & Components

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    • MOOG® - Adjustable Torsion Bar Key
      (0 reviews)
      # sp5109
      Adjustable Torsion Bar Key by MOOG®. Upgrade your vehicle to MOOG and experience a safe and comfortable ride. The parts are made tough to ensure reliable operation even under extreme conditions. Thanks to the advanced design and precise...
      Designed to make steering and suspension repairs easyDirect fit
      $133.32 - $177.18
    • ACDelco® - Professional™ Adjustable Torsion Bar Key
      (0 reviews)
      # sp27227
      Professional™ Adjustable Torsion Bar Key by ACDelco®. Designed utilizing the latest technology, this product by ACDelco features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle, it is...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $149.64 - $190.35
    • MOOG® - Alignment Ride Height Torsion Bar Key Component
      (0 reviews)
      # mpn2562613915
      Alignment Ride Height Torsion Bar Key Component by MOOG®. Quantity: 1 per Pack. Upgrade your vehicle to MOOG coil springs that are designed to restore the original handling, reduce body sway and bring ride height to OE specifications....
      Direct fit, with no modificationsRestores and retains proper handling
      $30.51
    • Dorman® - Adjustable Torsion Bar Key
      (0 reviews)
      # mpn4554763266
      Adjustable Torsion Bar Key by Dorman®. Quantity: 1 per Pack. Dorman Adjustable Torsion Bar Keys are quality-engineered to provide a longer service life. We've used premium materials to help reduce wear and provide added resistance to...
      Direct replacement for a proper fit every timeReplacing the torsion bar key will restore proper vehicle suspension height which will help reduce wear of tires and other suspension components
      $146.13
    • MOOG® - Alignment Ride Height Torsion Bar Key
      (0 reviews)
      # mpn2562601825
      Alignment Ride Height Torsion Bar Key by MOOG®. Quantity: 1 per Pack. Dodge ram truck torsion bar key. Component of Ram truck adjustable torsion bar key kit. Upgrade your vehicle to MOOG and experience a safe and comfortable ride. The...
      Designed to make steering and suspension repairs easyDirect fit
      $50.20
    • ACDelco® - Professional™ Adjustable Torsion Bar Key
      (0 reviews)
      # 760049016
      Professional™ Adjustable Torsion Bar Key by ACDelco®. Quantity: 1 per Pack. Designed utilizing the latest technology, this product by ACDelco features premium quality and will perform better than advertised. Perfect for your vehicle...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $55.11 - $57.32
    • MOOG® - Front Adjustable Torsion Bar Key Kit
      (0 reviews)
      # mpn405076
      Front Adjustable Torsion Bar Key Kit by MOOG®. Upgrade your vehicle to MOOG and experience a safe and comfortable ride. The parts are made tough to ensure reliable operation even under extreme conditions. Thanks to the advanced design...
      Designed to make steering and suspension repairs easyDirect fit
      $145.58
    • MOOG® - Front Adjustable Torsion Bar Key Kit
      (0 reviews)
      # mpn454688
      Front Adjustable Torsion Bar Key Kit by MOOG®. Upgrade your vehicle to MOOG and experience a safe and comfortable ride. The parts are made tough to ensure reliable operation even under extreme conditions. Thanks to the advanced design...
      Designed to make steering and suspension repairs easyDirect fit
      $140.20
    • MOOG® - Front Adjustable Torsion Bar Key Kit
      (0 reviews)
      # mpn454690
      Front Adjustable Torsion Bar Key Kit by MOOG®. Upgrade your vehicle to MOOG and experience a safe and comfortable ride. The parts are made tough to ensure reliable operation even under extreme conditions. Thanks to the advanced design...
      Designed to make steering and suspension repairs easyDirect fit
      $136.98
    • MOOG® - Front Adjustable Torsion Bar Keys
      (0 reviews)
      # mpn2076021424
      Front Adjustable Torsion Bar Keys by MOOG®. Quantity: 2 per Pack. Allows Front Ride Height Changes Up To 2.25" Above OEM. Upgrade your vehicle to MOOG and experience a safe and comfortable ride. The parts are made tough to ensure...
      Designed to make steering and suspension repairs easyDirect fit
      $177.18
    • ACDelco® - Professional™ Front Adjustable Torsion Bar Key Kit
      (0 reviews)
      # mpn4394930195
      Professional™ Front Adjustable Torsion Bar Key Kit by ACDelco®. Designed utilizing the latest technology, this product by ACDelco features premium quality and will perform better than advertised. Perfect for your vehicle and...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $190.35
    • ACDelco® - Professional™ Front Adjustable Torsion Bar Key Kit
      (0 reviews)
      # mpn4480101431
      Professional™ Front Adjustable Torsion Bar Key Kit by ACDelco®. Designed utilizing the latest technology, this product by ACDelco features premium quality and will perform better than advertised. Perfect for your vehicle and...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $159.66
    • MOOG® - Front Adjustable Torsion Bar Key Kit
      (0 reviews)
      # mpn454689
      Front Adjustable Torsion Bar Key Kit by MOOG®. Upgrade your vehicle to MOOG and experience a safe and comfortable ride. The parts are made tough to ensure reliable operation even under extreme conditions. Thanks to the advanced design...
      Designed to make steering and suspension repairs easyDirect fit
      $133.32
    • ACDelco® - Professional™ Front Adjustable Torsion Bar Key Kit
      (0 reviews)
      # mpn4480101432
      Professional™ Front Adjustable Torsion Bar Key Kit by ACDelco®. Designed utilizing the latest technology, this product by ACDelco features premium quality and will perform better than advertised. Perfect for your vehicle and...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $149.64
    • ACDelco® - Professional™ Front Adjustable Torsion Bar Key Kit
      (0 reviews)
      # mpn4480101426
      Professional™ Front Adjustable Torsion Bar Key Kit by ACDelco®. Designed utilizing the latest technology, this product by ACDelco features premium quality and will perform better than advertised. Perfect for your vehicle and...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $159.66
    • ACDelco® - Professional™ Front Adjustable Torsion Bar Key Kit
      (0 reviews)
      # mpn4394889266
      Professional™ Front Adjustable Torsion Bar Key Kit by ACDelco®. Designed utilizing the latest technology, this product by ACDelco features premium quality and will perform better than advertised. Perfect for your vehicle and...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $159.66
    • ACDelco® - Professional™ Adjustable Torsion Bar Key
      (0 reviews)
      # mpn4394957841
      Professional™ Adjustable Torsion Bar Key (45K31015) by ACDelco®. Quantity: 1 per Pack. Designed utilizing the latest technology, this product by ACDelco features premium quality and will perform better than advertised. Perfect for...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $55.11
    • ACDelco® - Professional™ Adjustable Torsion Bar Key
      (0 reviews)
      # mpn4394958847
      Professional™ Adjustable Torsion Bar Key (45K31017) by ACDelco®. Quantity: 1 per Pack. Designed utilizing the latest technology, this product by ACDelco features premium quality and will perform better than advertised. Perfect for...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $57.32
    • ACDelco® - Professional™ Adjustable Torsion Bar Key
      (0 reviews)
      # mpn4394956619
      Professional™ Adjustable Torsion Bar Key (45K31018) by ACDelco®. Quantity: 1 per Pack. Designed utilizing the latest technology, this product by ACDelco features premium quality and will perform better than advertised. Perfect for...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $55.49


    Like their coil and leaf counterparts, torsion bars are springs. However, instead of compressing like a coil spring or deflecting and flattening out like a leaf spring, a torsion bar twists when loaded. Torsion bars are spring steel rods with one of the ends mounted to the frame and the opposite ends attached to the suspension, usually the lower control arms. Torsion bars have been transversely mounted on some vehicles in the past but today they are more commonly mounted longitudinally.

    Torsion bars can be either splined or hex-shaped where they attach to the frame and control arms. The frame ends are typically mounted in a key, also called an anchor or adjuster, which enables adjustment of ride height. At normal ride height, the torsion bar twists a certain amount supporting the weight of the vehicle, and twists further when the wheel strikes a bump and moves upward. After the bump, the torsion bar unwinds, forcing the tire back down.

    The spring rate, or resistance to twisting, of a torsion bar is determined by the material it’s made of, and its diameter and length. Many late model trucks and SUVs, especially 4WD models, have longitudinally mounted torsion bars. This configuration enables the use of long torsion bars that have a wider twisting range, allowing more suspension travel that is useful when off-roading. Torsion bars also take up much less space on such vehicles, so drive axles can be easily located where coil springs would get in the way.

    Torsion bars are generally very reliable components, but like any type of springs they can eventually become fatigued, which can negatively affect ride height, handling and wheel alignment. However, because they are typically mounted low on the underside of the vehicle, they are also susceptible to impact damage from obstacles and road debris. The torsion bars on vehicles that are driven off-road should be inspected for bends, cracks, and scrapes, which could make them ineffective or decrease their lifespan. Many torsion bars have rubber cross member mounts, and these can wear and cause noise.

    Torsion bars are lighter and more compact than coil springs or leaf springs, but their primary advantage is that they can usually be adjusted. Unlike sacked coil springs that must be replaced, bolts at the keys on the torsion bar ends can be turned to raise ride height, or tune the height so it is even side-to-side. Proper ride height is critical to good handling, and to maintaining alignment angles for even tire wear. However, sometimes the range of adjustment is inadequate to bring ride height within specifications. We offer replacement key assemblies that increase the adjustment range, so ride height can be restored or even increased if desired – raising the front-end ride height to level the stance of a pickup truck for example.

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    Torsion Bars & Components Reviews

    Average rating:    5 - 7 reviews
    4.8 of 5
    2006 4x4 Ford Ranger Sport
    Shipped right away, went in no problem, however with bolts backed out all the way these keys lifted my truck 3 inches. Make sure to get the right tool to do this.
    Posted by Joseph (Concord, NC) / August 18, 20182006 Ford Ranger
    Was this review helpful for you? Yes
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