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Speedtech Performance USA torque arm rear suspensions dramatically improve performance handling and everyday drive quality of your leaf spring car. Unique in their design, the suspensions virtually eliminate the inherent change in geometry and possible traction issues commonly associated with leaf spring and 3- or 4-link type systems. Relatively easy to install and reasonably priced, they're perfect rear suspension upgrades to a well-matched performance front suspension. Speedtech Performance USA torque arm rear suspension facts and features: * Adjustable ride height, roll center, pinion angle, instant center, and wheelbase * Articulate lower control arms aid in eliminating suspension bind * Panhard bar mounting system accurately locates rear axle and allows for instant center adjustability * Delrin bushings eliminate the flex of rubber and squeak of poly bushings * QA1 double adjustable coil-over shocks with thrust washers * Coilover shocks allow 2 1/2 in. of ride height adjustment * Available for 9 in. Ford, 12-bolt and 10-bolt GM differentials * Optional complete rear axle with all brackets installed
Not Yet Reviewed
$3,430.96
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$3,692.63
BMR torque arm suspension kits are designed to eliminate the rear leaf springs, replacing them with a custom upper crossmember, adjustable control arms, and adjustable coilover shocks. They will provide lateral stability for acceleration and traction, and centered suspension articulation for bind-free handling. The kits feature a precision side-to-side axle positioning Watts link. The Watts link pivot is machined from 6061 billet aluminum and utilizes greasable, internally fluted Delrin bushings for a long, trouble-free life. Best of all, the Watts link is double-shear supported, unlike any other designs on the market today. Every component in the BMR torque arm suspension kits is completely adjustable. The torque arm itself provides pinion adjustability. The control arms are adjustable in length and have multiple mounting holes plotted in an arc to provide adjustment for anti-squat characteristics, giving your ride superior handling and traction. Help your street machine or track car realize its full potential with these BMR torque arm suspension kits.
( 2 )
$2,249.95
QA1 rear suspension conversion systems provide easy, bolt-in options to replace your coil springs on factory truck arms—without any cutting, welding, or other fabricating. Each kit contains frame brackets, axle brackets, linkage assemblies, a crossmember assembly, and necessary hardware. The conversions are available with coilovers or available for use with the factory springs. Order the model designed for fitment on your specific vehicle, and enjoy the stance, handling, and suspension performance of a revolutionary QA1 system.
( 18 )
$2,795.95
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$3,101.95
Seeking improved stance, along with ride quality and handling? Turn to QA1's handling suspension kits for a full-vehicle upgrade that fits your needs. Available in three different levels of performance, these kits offer easy, bolt-in installation (some welding may be needed) and seamlessly work with whatever OE component each piece attaches to. And with different levels, you can build your car in stages, using QA1's parts list as a road map to get to the level of performance you want and have peace of mind knowing you won't have compatibility issues. QA1 Level 1 handling kits deliver everything needed in one shot, taking the guesswork out of the process. These full-vehicle upgrades are designed to boost performance while giving you steady, reliable comfort. All QA1 handling suspension kits are offered with or without shocks and struts—giving you the flexibility to obtain the shocks or struts and spring rates you need. Select the kit designed for your vehicle.
Not Yet Reviewed
$4,256.95
QA1 1965-72 F-100 rear coilover conversion systems offer unprecedented adjustability and maximum performance without any binding issues, and the ability to achieve a 4 in. to 7 in. drop. These bolt-in systems can be installed without removing the bed and everything you need is included, right down to the hardware. Kits are available with single or double adjustable shocks, and some specific kits include QA1 MOD Series coilovers. Included in the systems: * Adjustable shocks * High-travel springs * Coil-over hardware * Adjustable trailing arms * Adjustable panhard bar * Panhard bar brace * Adjustable torque arm * Torque arm axle mount * Torque arm crossmember * All required nuts, bolts, etc.
( 4 )
$2,791.76
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$3,101.95
QA1 1988-98 C1500 rear coilover conversion systems are a great upgrade to your C1500 suspension. Each kit comes with QA1's proven adjustable coilover shocks—so you can change the valving to meet your specific needs—along with a variety of spring rate options. These shocks allow for ride height adjustability and are 100 percent dyno-tested and serialized. The QA1 C1500 torque arm suspension with C-notch bracket is manufactured from 12-gauge HSLA steel tubing for increased strength and powdercoated for long-lasting durability. Systems come complete with adjustable instant center, panhard bar, and pinion angle to allow you to adjust the system to your exact needs. This easy bolt-on kit will add more stability and allows for optimum camber adjustment in a lowered truck. Everything needed is included, all the way down to the hardware; no welding or bed removal required.
( 3 )
$2,791.76
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$2,887.95
PSC has taken the Jeep JK steering system back to the drawing board and engineered their exclusive Jeep JK Big Bore XD steering cylinder assist kits. These kits resolve the original steering issues, and efficiently handle the increased torque loads on vehicles equipped with up to 44 in. tires, upgraded aftermarket axles, differential lockers, or any combination thereof. These are the ultimate steering upgrade packages, and PSC includes everything needed for a successful install.
Not Yet Reviewed
$3,198.50
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$3,812.44
PSC has taken the Jeep JL steering system back to the drawing board and engineered their exclusive Jeep JL Big Bore XD steering cylinder assist kits. These kits are engineered to solve the original steering issues, and efficiently handle the increased torque loads on vehicles equipped with any combination of 37 in. or larger tire sizes, upgraded aftermarket axles, or differential lockers. Features and benefits of upgrade kit include: * Increased torque output * Relieves stress on steering gearbox and frame mounts * Steering assist cylinder acts as a dynamic steering stabilizer
Not Yet Reviewed
$3,543.50
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$3,895.99
PSC Jeep JL/JT Cylinder Assist EHPS (Electric-Hydraulic Power Steering) steering kits deliver improved handling characteristics without oversteer and a familiar level of road feel without increased driver effort for your Jeep Wrangler or Gladiator. Choose the preferred kit for your Jeep. Features: * Increased Torque Output * Relieves stress on steering gearbox and frame mounts * Steering Assist Cylinder acts as a dynamic steering stabilizer * Fully assembled hoses and fittings, ready to bolt-on for quicker, easier installation * All mounting brackets and hardware * EHPS boost kit for increased pump pressure * XDR steering gear featuring PSC's proprietary high-flow spool valve * High-capacity remote power steering fluid reservoir * Assist Cylinder kits--factory and aftermarket axles * Compatible with the factory pitman arm * Bolt-on heat sink fluid cooler kit * Tie rod clamp available in 1 1/4 in., 1 3/8 in., 1 1/2 in., 1 5/8 in., and 1 3/4 in. sizes
Not Yet Reviewed
$2,519.51
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$3,703.00
Holley offers performance packages for 2018-2021 2-door Polaris RZR Turbo S models, designed to enhance power, handling, and safety for your off-road adventures. Each package is expertly curated with top-tier aftermarket parts from the most trusted names in the industry, including XDR, Simpson, ADS Racing Shocks, and more. No guesswork. No compromises. Just proven upgrades designed to transform your UTV into a trail-dominating machine. Whether you're a weekend warrior or a hardcore off-road enthusiast, Holley's UTV Performance Packages can give you the confidence to push further, ride harder, and perform better! Features and benefits: * High-flow intake and exhaust systems—boost horsepower and torque with improved airflow and aggressive sound * Performance suspension upgrades will allow you to tackle the toughest terrain with smoother rides, better control, and more travel * Seats and harnesses—stay safe and locked in when the ride gets rough * Premium seating and multi-point harness systems keep you secure and comfortable through high-speed runs, sharp turns, and uneven terrain * Bulletproof durability components—built to withstand harsh conditions, extreme use, and everything the trail throws your way * Each kit is engineered for easy installation, so you can spend less time in the garage and more time exploring
Not Yet Reviewed
$3,844.95
Holley offers performance packages for 2018-2021 4-door Polaris RZR Turbo S models, designed to enhance power, handling, and safety for your off-road adventures. Each package is expertly curated with top-tier aftermarket parts from the most trusted names in the industry, including XDR, Simpson, ADS Racing Shocks, and more. No guesswork. No compromises. Just proven upgrades designed to transform your UTV into a trail-dominating machine. Whether you're a weekend warrior or a hardcore off-road enthusiast, Holley's UTV Performance Packages can give you the confidence to push further, ride harder, and perform better! Features and benefits: * High-flow intake and exhaust systems—boost horsepower and torque with improved airflow and aggressive sound * Performance suspension upgrades will allow you to tackle the toughest terrain with smoother rides, better control, and more travel * Seats and harnesses—stay safe and locked in when the ride gets rough * Premium seating and multi-point harness systems keep you secure and comfortable through high-speed runs, sharp turns, and uneven terrain * Bulletproof durability components—built to withstand harsh conditions, extreme use, and everything the trail throws your way * Each kit is engineered for easy installation, so you can spend less time in the garage and more time exploring
Not Yet Reviewed
$5,351.95
PSC Big Bore XD steering gears are direct replacements for your inadequate steering gear. They feature larger piston diameters, which increase the torque output of the steering gear—allowing your rig to overcome steering issues due to larger tires and/or locking differentials that you've installed. PSC Big Bore XD units are assembled using all new components and featuring their exclusive new gear housing--not reworked core housings, but 100 percent new cast and machined housings. PSC also offers cylinder-assist versions for vehicles that have 38 in. and bigger tires and larger drivelines. Order the steering gears designed for fitment with your make and model.
( 25 )
$2,250.00
PSC has taken the Jeep JT steering system back to the drawing board and engineered their exclusive Jeep JT Big Bore XD steering cylinder assist kits. These kits resolve the original steering issues, and efficiently handle the increased torque loads on vehicles equipped with 37 in. or larger tire sizes, upgraded aftermarket axles, differential lockers, or any combination thereof. Jeep JT Big Bore XD steering cylinder assist kits feature: * Increased torque output * Relieves stress on steering gearbox and frame mounts * Steering assist cylinder acts as a dynamic steering stabilizer
Not Yet Reviewed
$3,499.05
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$3,756.99
For the daily driver or a project that is not quite ready for a steering assist cylinder installation, PSC offer the Adventure Series Kit with Cylinder Assist capability. PSC Jeep JL Adventure steering kits package Performance Steering Components' powerful and strong Big Bore XD Cylinder Assist steering gearbox with their high performance high-flow steering pump kit. Together they help to eliminate excessive on-center steering wheel "play" and pump overheating, increase torque output turns up to 35 in. tire sizes without a steering assist cylinder, and improve turning capability when locking differentials are engaged. PSC Jeep JL Adventure Series kits include: * Big Bore XD steering gear box * High-flow power steering pump and remote reservoir kit * Fluid anti-splash valve for remote fluid reservoir * Master hose assembly kit * Fluid cooler kit * SWEPCO 715 power steering fluid
Not Yet Reviewed
$2,999.54
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$3,162.99
Many late-model Jeeps are equipped with new computer controlled electro-hydraulic steering (EHPS), electronic stability control (ESC), electronic roll mitigation (ERM), and a weight-saving aluminum housing steering gearbox. PSC has taken the Jeep steering system back to the drawing board and engineered its exclusive Big Bore XD steering gearbox and a traditional belt-driven high-flow mechanical power steering pump conversion. This produces an essential upgrade to solve the undesirable factory steering performance, while efficiently handling the increased torque loads due to larger tire sizes and installing aftermarket axle assemblies. Typical benefits: * Eliminates excessive on-center steering wheel "play" * Eliminates electro-hydraulic pump overheating * Increased torque output turns tire sizes over 35 in. * Improved turning capability when locking differentials are engaged Depending on model, kits can contain: * Big Bore XD steering gearbox * High-flow mechanical pump conversion kit * Reservoir kit * Upgraded high-pressure hose assembly * Upgraded return line kit * Fluid cooler kit * SWEPCO 715 power steering fluid
Not Yet Reviewed
$3,612.99
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$3,647.99
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