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Ditch those clunky leaf springs and take control of your rear suspension with QA1's coilovers and triangulated 4-link conversion kits. This upgrade improves ride quality, enhances handling performance, and enables you to dial in the perfect stance. With the added benefit of accommodating wider wheels and tires, this kit is the ideal solution for your car. QA1's 4-link conversion kits deliver handling control without compromising your daily comfort. Perfect for both street and track use, adjustable shocks are famous for their tunability, giving you exceptional handling and control and finer control over your suspension. Available with single adjustable, double adjustable, or MOD series shocks. Thoughtful design meets effortless installation requiring minimal welding. You'll experience a painless installation and setup process, where adjusting ride height, pinion angle, or wheelbase is as simple as a few tweaks – no link removal required. No modifications to floor pan required.
( 3 )
$2,383.95
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$3,687.95
UMI Performance Stage 2 handling kits will make any classic cruiser feel like a modern day muscle car! They are designed to bring you superior ride quality and improved handling, while giving you the lowered, aggressive stance you're looking for. These kits include everything you need to rebuild the suspension on your classic ride, such as upper and lower front A-arms, heavy-duty UMI sway bars with new end links, greaseable bushings, Bilstein HD shocks, UMI lowering springs, rear tubular upper and lower control arms, replacement rear end housing bushings, and heavy-duty tubular frame braces. UMI Performance Stage 2 handling kits are made of superior-quality materials to ensure long-lasting durability and performance. These UMI Performance Stage 2 handling kits are perfect for the weekend warrior looking to go for a back road cruise, perhaps hit the drag strip, or even an Auto-x.
( 4 )
$3,059.99
UMI Performance Stage 2.5 handling kits bring you the best of both worlds—combining UMI's Stage 2 handling kit with four-corner Viking coilover ride height adjustability. These Stage 2.5 handling kits feature UMI's most popular combination of front and rear springs, along with all the necessary components and hardware needed to transform your GM vehicle for improved handling, ride quality, and an impressive stance. Ride height is adjustable from stock to 2 in. below stock ride height, and the Viking shocks feature 19 settings in both compression and rebound. More than a dozen kits are available, with numerous options. Select the model recommended for your vehicle. Stage 2.5 handling kits include: * Tubular lower front A-arms with polyurethane bushings * Upper front A-arms with Delrin© bushings * Viking coilover kit * Heavy-duty front sway bar with new bushings and end-links * Front upper and lower race-quality hardware kit * Solid heat-treated rear sway bar * Tubular rear lower control arms with polyurethane bushings * Tubular rear upper control arms with polyurethane bushings * Tubular frame braces with hardware * Replacement rear-end housing bushings * Rear control arm race-quality hardware kit * UMI bolt-on rear coilover kit * Thrust bearing kit (x 2) * Spanner wrench kit Note: Rear coilover kit fits GM axle housing only. Aftermarket axle housing fitment is not guaranteed.
Not Yet Reviewed
$4,369.99
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$4,649.99
BMR Level 2 suspension handling packages are matched and developed to handle the twists and turns of your favorite road. Installation of these American-made components takes only a few hours of your time with basic hand tools. You can install superior handling on your ride today with BMR Level 2 Suspension handling packages. These BMR Level 2 handling packages include: * Lowering springs * Front and rear sway bars * Bilstein shocks * Upper and lower A-arms * Rear upper and lower control arms * Control arm mount braces
( 8 )
$2,349.00
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$2,409.00
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
Speedtech Road Assault suspension packages offer Pro Touring with a twist. You ask, "What about body roll control?" These kits are the perfect choice for those of you who haven't yet dialed-in your sway bar. Speedtech took their Pro Touring kit and added their custom, lightweight computer-bent tubular sway bar to tie everything together and make your project exciting! The bars are powdercoated black and include polyurethane bushings. With a Speedtech Road Assault suspension package, you'll experience better geometry, more tunability, and ride height adjustability—plus the ability to control the roll! Order the model recommended for your vehicle.
( 3 )
$2,537.00
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$2,834.78
Flaming River 1967-68 Camaro power rack and pinion cradle kits can upgrade the steering system on your classic musclecar! These direct bolt-on systems are stronger, lighter, and more responsive than original equipment. Like Flaming River's manual setup, the power rack and pinion provides a quick steering ratio with full turning radius. The units install using the existing chassis locations on late '60s Camaros and Firebirds. They're available with or without the steering column.
( 1 )
$2,339.99
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$2,706.99
QA1's 4-link conversion and standard Ford 9 in. axle kits give you everything you need to get your 2nd Gen Camaro or Firebird project on the road—fast. QA1 paired their 4-link suspension kit with a custom 9 in. rear housing for enthusiasts seeking top-tier performance and hassle-free installation. Your time is valuable, so say goodbye to hunting for junkyard rear ends or struggling with endless measurements and mismatched components—every component in this package is tested by QA1 to fit the first time. Each kit is engineered to deliver the performance, ride quality, and adjustability you need to handle serious power and aggressive driving—without the hassle of having to source each part. Ultimate shock performance: Ditch your leaf springs for QA1 MOD Series coilovers, triangulated 4-link suspension and an all-new narrowed 9 in. rear end. QA1's MOD shocks are designed to provide the ultimate in tunability and performance. With their four-way adjustable valving, remote nitrogen canisters, and huge dampening forces, QA1 MOD shocks deliver in any driving scenario. QA1 4-link kits are fully engineered to provide ride height, ride quality and instant center adjustability. Whether you're after a lowered, aggressive look or need clearance for wider wheels and tires, QA1 systems deliver. Easy installation: QA1 is committed to delivering products that make upgrading your vehicle as simple as possible, and their 4-link kits with 9 in. housing are designed for a bolt-on installation, eliminating the need for custom fabrication. Performance housing features: * Fabricated center section engineered for maximum strength and durability * Formed trailing arm brackets reduce flex under high loads, ensuring your suspension remains rigid * Heavy-duty 3 in. OD, 1/4 in. wall axle tubes provide the durability needed for high-performance applications * 31-spline 1541H alloy axles support up to 650 hp, with the housing handling up to 800 hp * Durable semi-gloss powder coat finish offers long-lasting protection and a clean, sleek look * Drain plug, fill plug, and Jack Pad come standard to make service a breeze * Includes T-bolts and housing studs for assembling axle shafts and installing third members * High-quality roller bearings for smooth operation and long-lasting reliability
Not Yet Reviewed
$4,435.95
Helix Mustang II IFS suspension packages and kits will give your car or truck the excellent handling of independent suspension with added stopping power! IFS kits come in many different configurations with the necessary components and hardware. And with over a thousand kits to choose from, they are sure to have what you need to fit your wants and budget. From complete systems with chrome columns to their Stage 1 kits that allow you to use off-the-shelf components to complete your setup, and everything in between, Helix has the Mustang II IFS systems and kits to revolutionize your vehicle's suspension.
( 17 )
$2,199.95
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$3,499.95
QA1 Level 1 Big Wheel kits contain everything to give your GM B-body or G-body the ideal stance, plus improved ride quality. Each kit will include front and rear single adjustable Pro Coil system coilovers and an aluminum spanner wrench to dial in the exact style you want. The single adjustable valving allows you to firm up or soften the ride with the simple twist of a knob. QA1 Level 1 Big Wheel kits also include adjustable upper and lower trailing arms that center your rear axle in the wheel well, granting more clearance for larger wheels. Additionally, tie rod adjuster sleeves and a thrust bearing kit complete the kits. The components are powdercoated and ready to install with the necessary hardware, making your installation hassle-free. Choose the kit designed for your vehicle.
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$2,690.95
QA1's 4-link conversion and narrowed Ford 9 in. axle kits are an all-in-one solution that gives you everything you need to get your First-Gen Camaro or Firebird project on the road—fast. QA1 paired their 4-link suspension kit with a custom narrowed 9 in. rear housing for enthusiasts seeking top-tier performance and hassle-free installation. Your time is valuable, so say goodbye to hunting for junkyard rear ends or struggling with endless measurements and mismatched components—every component in this package is tested by QA1 to fit the first time. These QA1 upgrade kits have been engineered to deliver the performance, ride quality, and adjustability you need to handle serious power and aggressive driving—without the hassle of having to outsource each part. Ultimate shock performance: Ditch your leaf springs for QA1 MOD Series coilovers, triangulated 4-link suspension and an all-new narrowed 9 in. rear end. QA1's MOD shocks are designed to provide the ultimate in tunability and performance. With their four-way adjustable valving, remote nitrogen canisters, and huge dampening forces, QA1 MOD shocks deliver in any driving scenario. QA1 4-link kits are fully engineered to provide ride height, ride quality and instant center adjustability. Whether you're after a lowered, aggressive look or need clearance for wider wheels and tires, QA1 systems deliver. Easy installation: QA1 is committed to delivering products that make upgrading your car as simple as possible, and their 4-link kits with 9 in. housing are designed for a bolt-on installation, eliminating the need for custom fabrication. Key Features: * Narrowed housing to accommodate wide wheel and tire packages in mini tubbed cars * Fabricated center section engineered for maximum strength and durability * Formed trailing arm brackets reduce flex under high loads, ensuring your suspension remains rigid * Heavy-duty 3 in. OD, 1/4 in. wall axle tubes provide the durability needed for high-performance applications * 31-spline 1541H alloy axles support up to 650 hp, with the housing handling up to 800 hp * Durable semi-gloss powder coat finish offers long-lasting protection and a clean, sleek look * Drain plug, fill plug, and Jack Pad come standard to make service a breeze * Includes T-bolts and housing studs for assembling axle shafts and installing third members * High-quality roller bearings for smooth operation and long-lasting reliability
Not Yet Reviewed
$4,435.95
Flaming River 1968-72 Chevelle power rack and pinion cradle kits modernize and strengthen your current steering system. The precision JIG-welded units install with basic hand tools into your stock steering mounting holes, beefing up your rack gear and still allowing for a full turning radius. Whether you have a small or big block engine, these kits use a unique travel bar system that connects new tubular inner tie rod ends to the original pivot points to reduce bump steer. Numerous kits are available with or without a tilt column and steering pump; and most include wiring connectors, universal joints and shafting, mounting hardware, a billet swivel floor mount, and a polished aluminum mounting reservoir. Enjoy an updated steering system that's lighter and stronger with a Flaming River 1968-72 Chevelle power rack and pinion cradle kit.
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$3,506.99
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$4,813.99
From the people who doing steering right--UniSteer rack and pinion kits deliver the feel and performance of precision. Their conversion kits are well-engineered and built to match the factory suspension, so installation is easy and performance is assured. UniSteer bolt-on rack and pinions are offered in both manual and power kits to fit your application needs. When you want to improve handling, reduce effort, and enhance responsiveness of your driving experience in your classic ride, turn to the experts at UniSteer for a rack and pinion conversion kit. UniSteer stands behind their products with a 2-year, Unlimited Mile Warranty.
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$2,583.99
Helix CornerKiller IFS front suspension will revolutionize your suspension and give your car or truck the ride and handling it deserves. Each front suspension is specially designed to give your classic ride modern handling and stopping power by updating all of the critical parts. Helix starts with precision-made components that are designed to work together. Tubular control arms provide the adjustability you need to setup the suspension for your car, while your choice of standard to 2 in. drop spindles help you customize the stance. Topping off the spindles is a set of 11 in. disc brakes to provide extra stopping power. Rack and pinion steering is provided by either power assist or manual racks. Finally choose between coilovers for maximum handling and a static stance or air struts for the ultimate in ride height control and ride quality. Bring your classic ride into modern days with a Helix CornerKiller IFS front suspension package.
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$2,849.95
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$4,099.95
What are some of the virtues of a quality RideTech StreetGrip suspension system? For starters, they're easy to install. The Delrin bushings eliminate deflection, and dual-rate springs allow the vehicle to transition small road irregularities via a compliant spring rate. Adjustable monotube shocks deliver premium ride quality and handling performance, while the tall upper ball joints reposition the control arms to correct camber for more stability. Sway bar end links are also included to minimize body roll through corners. Give your vehicle the components it needs to handle the road with a StreetGrip suspension system—RideTech's one-box solution for better ride and control. Order the model designed for fitment on your vehicle.
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$2,165.00
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$2,815.00
Pedders' renowned expertise plus advanced technology equals XA Extreme coilover kits that let you click, tune, and play! These height-adjustable coilover shocks are built to Pedders' stringent quality standards. They feature sports-calibrated tunable damping, motorsports coil springs individually tuned to suit each application, and a host of other high performance features—including engineered mounting bracketry. Plus, shocks have a 30-position adjustable bump and rebound damping setting which offers a fine-tuned suspension that's ready to play with just a click of a button. For the performance enthusiast, Pedders XA Extreme coilover kits are a great fit. Order the kit designed for your vehicle application.
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$2,325.34
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$2,384.96
Detroit Speed control arm and spindle kits work together on your vehicle to enhance performance. The DSE forged spindle is taller than stock to improve handling by modifying the camber curve, resulting in a negative camber gain during suspension compression. Your stock steer arms mount in the optimal location to minimize bump steer. The DSE tubular control arms offer a precise fit and are TIG-welded in fixtures to guarantee geometric accuracy and repeatability. The upper arms provide increased strength and additional positive caster, and the lower arms feature a robust tubular design with gussets and a cross brace. Both have Delrin bushings, new ball joints, and a gloss black powdercoated finish. Install an integrated system that delivers performance for your ride--Detroit Speed control arm and spindle kits.
Not Yet Reviewed
$2,275.90
Aldan American Track Comp double adjustable coilover kits are hand-built in the USA to replace your factory shocks and springs with drastically improved handling and ride quality. These kits are designed for specific vehicle applications and offer shock bodies crafted from lightweight, high-strength, CNC-machined 6061 T-6 billet aluminum. They're matched with high-tensile chrome silicon steel coil springs for strong, consistent performance. A black powdercoat provides added durability and a pleasing appearance. The coilover shocks ship fully assembled and are factory serviceable by Aldan American. You can order a pair for either the front or rear suspension, or a complete set for the entire vehicle.
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$2,075.95
Tremendous front grip and a host of features can be yours with UMI Performance Competition front-end kits. The included A-arm kit enables 10 degrees caster while maintaining standard track width and wheelbase. Lower A-arms are assembled with tall lower ball joints to optimize roll center, camber gain, and center of gravity. Lower A-arms feature Delrin bushings for smooth travel and bind-free performance. The new lower A-arm works in conjunction with the included adjustable upper arm—which features minimum shim adjustability, Pro Forged ball joints, and super-smooth PTFE lined rod ends. The front sway bar attaches using UMI's swivel-style end link design and double shear mounting system. The included Viking Crusader coilover shocks mount to the lower A-arm in double shear quick-change brackets. The lower shock mount is removable to allow spring and shock changes at the track. UMI's kit features Viking Crusader shocks with AT pro-touring valving (high rebound tie-down for road race and autocross) and a true 2.5 in. racing coilover. The upper stud mount fits in the factory location, while the lower is optimized to fit UMI's 3057-1 coilover lower A-arm. Some grinding is required for installation in the upper frame spring bucket. Other spring rates and valve codes are available. The Competition kits have been battle-tested on the iconic UMI Green Machine. Kits are available in red or black powdercoat; and are 100 percent designed, manufactured, and raced with pride in the USA.
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$2,309.99
UMI Performance Stage 3 handling kits are designed to help you achieve a high level of performance pro-touring handling capabilities, while not compromising the comfort of your everyday commute. They deliver precision steering, as well as excellent handling and balance, with superior-quality parts components you won't find in other handling kits. Kits include the following features: * Increased spindle height by 1/2 in. via tall upper ball joints for improved camber gain and a better contact patch. Works nicely in conjunction with lowering springs * Upper A-arms add caster for improved steering feel and straight line stability * Lower A-arms feature UMI-built Delrin bushings and accept standard springs or coilovers * 1.25 in. front sway bar for flat cornering, CNC-bent from 4140 balanced with 1 in. solid heat-formed rear sway bar * Shocks feature monotube construction and are designed and tuned for optimum ride quality, combined with responsive handling * UMI springs feature ultra premium CrSi material with linear rates front and rear for consistent handling * Rear trailing arms feature poly and roto-joints, as well as adjustable uppers for setting pinion angle and rear lateral location * Roto-Joints allow for smooth articulation for improved handling and less bind
( 1 )
$3,569.99
Detroit Speed Rear Speed 2 kits work great with any of Detroit Speed's front suspension systems. Their components deliver improved handling with an increased spring rate. They're available with different suspension drop amounts and other options to ensure best performance. Rear Speed 2 kits are offered for a wide range of vehicles from the 1960s, '70s, and '80s.
Not Yet Reviewed
$4,149.95
Clearance
Scott's Hot Rods 4-bar rear suspension kits have a simple design, but will greatly improve the ride quality and handling of your hot rod or custom. These truly equal length parallel 4-bars use a very long, perpendicular panhard bar to maximize efficiency and reduce lateral movement. Both user-friendly and fully adjustable, the kits also use their CNC-machined and tapped stainless steel rod ends with right-hand or left-hand thread, allowing you to adjust the pinion angle and setup without unbolting the link bars. And unlike a Triangulated 4-link system, the pinon angle does not change throughout the travel of the suspension. The kits are offered with coilovers or airbags. Your rear suspension is just as important as the front to the ride and handling of your car; install a Scott's Hot Rods 4-bar rear suspension kit and increase your driving pleasure. Additional notes and what's included: * CNC-machined 1 1/8 in. x 1/4 in. wall DOM tubing link and panhard bars (adjustable RH- and LH-thread) * Scott's utilize a bar as long as possible per vehicle application to ensure the least amount of lateral movement * CNC-machined stainless steel rod ends--RH- and LH-thread * FK Bearing heim joints--RH- and LH-thread * Aldan American single-adjustable coilovers or Firestone 9000 tapered air springs * Coilovers are the most popular for everyday cruisers * Airbag kits are for those who want to lay their vehicle on the ground * Upper shock crossmember is standard on all kits allowing you to determine final ride height when installing * Rear-end housing brackets * Front frame brackets * 5/8 in. Grade 8 hardware * Lifetime guarantee
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$3,861.99
$2,638.50
Detroit Speed QUADRALink rear suspension kits offer 4-link geometry for the best possible handling. These kits are a great way to upgrade from your original leaf spring suspension. They feature Detroit Speed's patented Swivel-Link that allows the suspension to fully articulate with smooth, solid motion and no binding—and it's done without Heim joints! QUADRALink uses tuned high-Durometer rubber bushings, rather than noisy, short-life Heim joints or squeaky urethane bushings. Plus, unlike other kits, these suspensions utilize an adjustable panhard rod that provides precise and effective rear axle lateral location during hard cornering. The long upper links provide great pinion and U-joint angle control, while the rear upper shock crossmember strengthens the rear body and frame section. QUADRALink rear suspension kits are available for a variety of specific vehicle applications; select the model to enhance your ride!
( 1 )
$3,017.95
Speedtech Performance USA rear suspension systems utilize Articulate technology on the upper and lower trailing arms to rotate laterally while the suspension travels through its normal range of motion. This greatly reduces bind and maintains better geometric curves. Delrin bushings throughout eliminate the flex of rubber and squeak of urethane. Speedtech's chassis-mount adjustable sway bar allows the bar to work at its full potential. With the available added feature of a bolt-in true coilover shock conversion, you'll be able to tune your suspension to reach its max performance! The base rear suspension systems include Articulate adjustable no-bind upper and lower trailing arms, Delrin bushings, adjustable 1 in. tubular rear sway bar, Grade 8 hardware, and instructions. They feature QA1 double adjustable coilover shocks, allowing for 19 setting positions for both compression and rebound settings—that's a total of 361 different valving combinations! Precision-machined PTFE/bronze-wrapped pistons on 5/8 in. hard chrome plated rods are encased in clear anodized, lightweight aluminum housings. Left-hand threads avoid shock separation when adjusting your ride height. Speedtech systems are available for a variety of vehicle applications from the 1960s and '70s.
Not Yet Reviewed
$2,713.10
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