Suspension Link Kits

A 4-link suspension system is commonly used to replace leaf springs and shocks in vehicles to provide much greater stability while cornering, greater tire contact and...

A 4-link suspension system is commonly used to replace leaf springs and shocks in vehicles to provide much greater stability while cornering, greater tire contact and traction for drag racers, and reduces body roll in lifted off-road trucks and SUVs. Four-link kits create a definitive center for a rear suspension, and are commonly used with a Panhard or track bar to improve vehicle handling because it lowers your off-road vehicle’s center of gravity.

4-Link Kit for Trucks and Off-Road

A 4-link rear suspension system provides many performance advantages and longevity over a leaf-spring setup for intense off-road...

4-Link Kit for Trucks and Off-Road

A 4-link rear suspension system provides many performance advantages and longevity over a leaf-spring setup for intense off-road use or street vehicle. Whether you’re driving a Jeep Wrangler YJ, a Chevy S10 or C10 pickup, or Ford Bronco, Summit Racing carries several 4-link kits for trucks and SUVs. Four-link systems attach to the rear axle, and the center of your truck or SUV to let the axle articulate over rough terrain while significantly reducing the impact on the body of the vehicle. That reduces a ton of wear on various parts, and dramatically improves ride quality for drivers and passengers.

4-Link Kits for Drag Racing

Four-link brackets offer flexibility to set up your racecar’s 4-link instant center (or IC) in the location that provides maximum hookup and acceleration for your specific vehicle to help you win a lot of races. Four-link kits are available with or without crossmembers, and with or without diagonal links included. Summit Racing has everything you need to build the triangulated or parallel 4-link suspension setup you want.

Top-Brand Four Link Kits

From Heidts and RideTech, to Detroit Speed and Helix, and many more, Summit Racing carries a massive selection of four-link suspension kits from the most trusted brands in performance suspension. Find yours today.

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RideTech Bolt-On 4-Link Systems

RideTech bolt-on 4-link systems provide a lowered ride height with smooth handling. They include the link bars with rubber bushings, powdercoated brackets, and optional front upper or lower controls arms, depending on the vehicle application. The suspension systems require no welding or cutting, making installation easy. Order the kit designed for fitment on your year/make/model.

4.75 out of 5 stars ( 8 )

$575.00

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$2,895.00

Competition Engineering Magnum Series 4-Link Kits

Competition Engineering Magnum 4-link kits offer the ultimate strength and adjustability for your high horsepower race car. Your big power racer needs more than directly-threaded links. These Magnum kits feature special threaded tube inserts that weld into thick-walled chromoly steel link tubing to handle shock loads without flexing. Plus, the 1/4 in. thick housing and frame brackets feature integral shock mounting holes to save you fabrication time on separate shock brackets along with additional mounting holes for wheelie bars, sway bars, and additional tube gusseting. Your high performance race car needs high performance traction devices; get connected with Competition Engineering Magnum 4-link kits. Features: * Chromoly steel tube links * Computer machined treaded tube ends * Thick steel brackets * Chromoly spherical rod ends * 21 in. mounting radius * Hardware and instructions

4.5 out of 5 stars ( 10 )

$698.99

RideTech Triangulated 4-Link Systems

RideTech triangulated 4-link systems are designed for the the professional builder who wants a straightforward, no-compromise rear air ride suspension. They do not require a panhard bar, and feature round, 0.219 in. thick 4-link tubing. The systems include the 4-link mounting brackets for the front and rear, as well as the installation hardware. Welding is required to mount one of these kits to your vehicle.

4.8 out of 5 stars ( 5 )

$765.00

RideTech Parallel 4-Link Systems

RideTech parallel 4-link systems feature rubber bushings, heavy tubing, laser-cut bracketry, and a panhard bar to position the rear axle side to side in many applications. They avoid interference between the upper bars and the OEM gas tank. These systems are also slightly easier for the casual installer to visualize and install because there are fewer bar mounts to deal with--the frame brackets and axle brackets carry both upper and lower bars. The 4-link bars use .219 in. thick wall direct-threaded DOM tubing for maximum strength, and CNC laser-cut and folded .188 in. wall alloy steel bracketry for strength and accuracy.

5.0 out of 5 stars ( 4 )

$925.00

Helix 4-Link Kits

Take control of your vehicle's rear axle with Helix 4-link kits. They offer total adjustability making them ideal for the track or street, and include custom bolt-on brackets, resulting in true bolt-on installation for all parts (less the axle brackets). With heavy-duty steel construction, oversized 4-link bars, hardware, instructions, and a limited lifetime warranty, your classic will enjoy the modern performance of Helix 4-link kits.

2.0 out of 5 stars ( 1 )

$849.50

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$1,895.95

Tin Soldier Racecars Low Prep 4-Link Kits

Tin Soldier Racecars Low Prep 4-link kits have taken what they have learned from some of the fastest stock suspension and 4-link small tire cars and combined them into one universal kit. The shorter upper bar allows the car to separate quickly on the launch like a stock suspension car, while keeping the versatility and strength of a traditional 4-link. It's truly the best of both worlds. The chassis brackets are laser cut from 1/4 in. thick plate and feature 1/2 in. staggered holes for all the adjustment you need whether on a radial or slick. The chassis brackets are notched on bottom for 1 5/8 in. tube and have through holes for a 1 5/8 in. tube on top (12 in. spread between). Each bracket has ProJack tabs incorporated into the bottom of the brackets. The axle housing brackets are designed around 275/315 or 28/29 in. tall tires, but still work well with larger tires. They are laser cut from 1/4 in. thick plate and feature 1/2 in. staggered holes for all the adjustment you need whether on a radial or slick. The axle housing brackets are made for 3.5 in. axle tubes and feature 6 in. of shock adjustment in 3/4 in. increments, while including ProJack tabs incorporated into the bottom of the brackets. Steel shock mounts are included. The bars are made from chromoly tube and feature 3/4 in. HD chromoly rod ends with zinc plated jam nuts. The bungs feature a hex adjuster and are constructed from chromoly. Tin Soldier Racecars Low Prep 4-link kits were originally designed for drag radial cars, but after much testing we have found that they really work well on no-prep to moderate prep on any small tire, slick, or radial. If you're looking to increase your traction and lower ETs these kits are for you.

Not Yet Reviewed

$954.99

QA1 HD Pro Rear Drag 4-Link Systems

QA1 HD Pro rear drag 4-link kits are built to put down serious power! Streamlining the fabrication process, these systems deliver professional-grade results and performance in a convenient, easy-to-order kit. They are designed for the hardcore, discerning, do-it-yourself racer looking for a no-compromise solution to take their vehicle to the next level in performance and adjustability. Offered with or without QA1's MOD Series 4-way adjustable coilover shocks, or 7 in. travel, track-proven single or double adjustable coilover shocks, each kit contains high-quality, MIG-weldable components to ensure a safe and properly engineered design that can be easily adapted into many drag racing setups. A components kit is also offered without coilover shocks and lateral locating device. Find convenience, safety, and performance all in a QA1 HD Pro rear drag 4-link system. Select the kit best suited to your drag race suspension setup. Features, benefits, and contents: * Drag race-style 4-link design: -- Performance and adjustability -- Wide range of instant center tuning and on-car adjustability -- Components can be cut to length -- 40 in. or narrower frame rails * 1/4 in. thick plates * 1 1/4 in. diameter, 22 in. length trailing arm tubes * Grade 8 hardware * QA1 chromoly rod ends * 40 in. shock crossmember and mounting tabs * 40 in. diagonal link kit with mounting brackets (not in components kit)

Not Yet Reviewed

$567.95

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$2,695.95

Competition Engineering Standard Series 4-Link Kits

Competition Engineering Standard Series 4-link kits provide rear suspensions that will give you the freedom to make incremental changes in your car's point of instant center (the adjustable point that determines weight transfer), for head-snapping launches. Designed for flexibility of adjustment to suit an individual car's characteristics, these kits allow custom installation to a particular application. Gain increased adjustability over ladder bar suspensions with Competition Engineering Standard 4-link rear suspensions. Standard kits include: * Direct threaded seamless steel tube links * Permanently mounted adjusting nuts for quick tuning * Stamped cold rolled steel brackets * Chromoly spherical rod ends * Grade 8 fasteners and jam nuts

4.82 out of 5 stars ( 22 )

$404.99

Top Street Performance Triangulated 4-Link Rear-End Suspension Kits

Top Street Performance's popular triangulated 4-link rear-end suspension kits are designed to work with a 3 in. axle tube and have 3-position shock mounts to make it easy to set the desired ride height. They mount the forward brackets to the inside of your frame and eliminate the need of a panhard bar. The link bars are fully adjustable 1 in. diameter by 0.156 in. wall tubing with 3/4 in. rod ends and nylon bushings. They're available with steel or stainless steel tube material. These all-in-one kits are a simple solution for great looks and handling. Order the model recommended for your vehicle.

4.8 out of 5 stars ( 5 )

$283.96

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$349.89

Rhodes Race Cars Pro Series 4-Link Suspension Kits

Rhodes Race Cars Pro Series 4-link suspension kits are for competitive racers building their performance ride. Package specs and features: * 1/4 in. mild steel Sportsman Series housing and chassis brackets * Housing brackets have integrated shock and wheelie bar mounts * Housing brackets are for 3 in. axle housing tubes * 1 1/4 in. O.D. .095 wall chromoly 4-link tubes * 4 left and 4 right hand 3/4 in.-16 weld-in threaded bungs * Coilover shock mounting kit * Grade 8 mounting hardware * Overall length is 18 in.

4.0 out of 5 stars ( 3 )

$299.95

Heidts Bolt-In 4-Link Kits

Heidts offers bolt-in 4-link kits for a variety of applications from the 1960s and '70s. Delivering maximum performance, the kits are complete bolt-ons, with no cutting or floor modifications required—and the adjustable 4-link mounts allow for suspension tuning. Each kit includes brackets, adjustable links, top crossmember, standard black coilover shocks, and hardware. Get an easier handle on performance with Heidts bolt-in 4-link kits.

4.0 out of 5 stars ( 2 )

$2,411.00

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$2,643.00

Helix Triangulated 4-Link Kits

Helix triangulated 4-link kits bring your rear axle under control! Helix knows that putting power to the ground is essential, whether your car is stock or hot rodded; so they built a 4-link kit that will remain straight and perfectly aligned under even the most demanding applications. Heavy-duty only begins to describe these kits, with each bracket custom-cut from 3/16 in. steel plate and bars made from 0.156 in. wall tubing. Topping off each bar are special, infinitely adjustable rod ends that are thicker than usual—and thread over 2.5 in. into the 4-link bars, giving you added strength and adjustability. Nearly 200 kits are available; order the model recommended for your vehicle.

2.25 out of 5 stars ( 4 )

$699.95

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$949.50

Tin Soldier Racecars 4-Link Kits

Tin Soldier Racecars 4-link kits are designed for ultimate traction and adjustability while offering exceptional strength. The chassis brackets are laser cut from 1/4 in. thick plate and feature 1/2 in. staggered holes for all the adjustment you need whether on a radial or slick. The chassis brackets are notched on the bottom for 1 5/8 in. tube, and have through holes for a 1 5/8 in. tube on top. The brackets are set up for 15 in. tube spread, but can be cut down to 12 in., if needed. Each bracket features ProJack tabs incorporated into the bottom of the brackets. The axle housing brackets are designed around 275/315 or 28/29 in. tall tires, but still work well with larger tires. They are laser cut from 1/4 in. thick plate and feature 1/2 in. staggered holes for all the adjustment you need, whether on a radial or slick. The axle housing brackets are made for 3.5 in. axle tubes and feature 6 in. shock adjustment in 3/4 in. increments, while including ProJack tabs incorporated into the bottom of the brackets. Steel shock mounts are included. The bars are made from chromoly tube and feature 3/4 in. HD chromoly rod ends with zinc plated jam nuts. The bungs feature a hex adjuster and are constructed from chromoly. If you're looking to increase your traction and lower ETs, a Tin Soldier Racecars 4-link kit is for you.

Not Yet Reviewed

$929.99

Heidts 1964-70 Ford Mustang 4-Link Rear Suspension Kits

Heidts 4-link kits transform your classic vehicle into a high performance fun street machine with a modern suspension. These complete kits stiffen the body, and the tunable rear 4-links provide the best traction and bring a ton more tuning potential to the table. Bolt-in and weld-in kits are both available. Heidts utilizes proven engineering and design for high performance street and track purposes.

Not Yet Reviewed

$2,411.00

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$2,729.00

Heidts Classic Truck 4-Link Kits

Add Heidts classic truck 4-link kits with coilovers and a panhard rod—and you'll have a rear suspension with the most excellent ride for any classic truck. These kits attach directly to the stock frame rails; no cutting or modifications are needed. You set the ride height with the adjustable axle brackets, and a bolt-in upper crossmember for coilovers is included. Choose your 4-link kits in plain steel or polished stainless steel. Install the beginnings of a great ride with Heidts classic truck 4-link kits.

4.33 out of 5 stars ( 3 )

$1,100.00

Heidts Mini Tub 4-Link Kits

Heidts Hot Rod and Muscle Car Parts offers a variety of suspension link kits for many vehicles, including classic Camaros and Firebirds. These 4-link kits are built to work with mini tub kits for high-horsepower cars and autocross applications. Each kit includes: chassis and axle brackets, adjustable links, full upper coilover crossmember, panhard bar, adjustable Heidts coilovers, and all hardware. The adjustable 4-link mounds allow suspension tuning. Bolt on maximum performance!

Not Yet Reviewed

$616.00

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$2,526.00

Trail-Gear Trail-Link Three Front 3-Link Kits

Another extensively-tested and superior Trail-Gear suspension product, Trail-Link Three front 3-link kits are user-friendly, strong, and more affordable than you ever imagined. The kits include everything needed, except your choice and size of shocks and upper shock mounts (sold separately). The upper shock mount location will vary from vehicle to vehicle; select a kit by determining the upper shock mount location, based on the desired ride height and needs of your vehicle. (See note above, if you prefer a kit that includes air shocks.) Kits include: * (2) 41 in., 2 in O.D. x .250 in. wall DOM links * (1) 30 in., 2 in. O.D. x .250 in. wall DOM links * (1) 24.75 in., 1.25 in. O.D. x .250 in. wall DOM panhard link * (8) Link mounting brackets * (6) Creeper joints * (8) Weld-in bungs * (2) Rod ends * (4) Misalignment spacers * (4) Shock-length mockup strips * (2) Lower shock mounting kits

Not Yet Reviewed

$1,299.99

Chassis Engineering 4-Link Kits

Chassis Engineering 4-link kits are designed for your classic hot rod. Their selection of rear, rear for coilovers, and triangulated rear 4-link kits will keep the rear axle in place and improve handling, as well as traction. The kits include brackets, bars, stainless steel ends, urethane bushings, bolts, and instructions. They're available for fitment on a variety of vehicles from the 1920s and '30s. No matter your kit preference, adding a Chassis Engineering 4-link kit to your Ford will deliver the performance you desire.

Not Yet Reviewed

$510.00

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$536.00

Rock Krawler Pro-X Upgrade Kits

Rock Krawler Pro-X upgrade kits are triangulated 4-link rear assemblies that allow removal of the rear track bar. They eliminate the cross talk of the front and rear track bars, greatly smoothing the on-highway ride. The Pro-X rear also maintains the rear axle perfectly centered throughout the suspension cycle and removes the natural suspension bind of the rear OEM 5-link arrangement. Benefits: * Complete bolt-in system * Excellent highway ride * Improved off-road ability * Greatly improved rear pinion cycle with equal length rear upper and lower arms * Allows for rear pinion adjustment System includes: * Two adjustable triangulated rear upper control arms * Pro-X bolt-in rear axle cradle * Drill bit and tap kit

Not Yet Reviewed

$896.46

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$2,059.11

Detroit Speed QUADRALink Rear Suspension Kits

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!

5.0 out of 5 stars ( 1 )

$3,017.95

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$3,869.95

Alston Racing Pro-Link 4-Link Suspension Kits

Alston Racing standard Pro-Link 4-link suspension kits feature DOM tubing that gets internally threaded at both ends, and integral large wrench flats make adjustments incredibly easy. The link tubes get tapped to receive 5/8 in. bore x 3/4 in. shank rod ends (sold separately.) Alston Racing Pro-Link 4-link suspension kits provide the no-compromise, state-of-the-art components you need to win! Additional product features, items, and notes include: * 1.000 in. x 0.156 in. wall DOM tubing * Link tubes * Brackets and hardware * Welding is required

Not Yet Reviewed

$619.00