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Chassis & Suspension

Car & Truck Chassis & Suspension Parts

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Car & Truck Chassis & Suspension Parts

Welcome to the home of great handling and ride quality! We stock a huge assortment of car and truck chassis and suspension parts like shocks, struts, and coil and leaf...

Welcome to the home of great handling and ride quality! We stock a huge assortment of car and truck chassis and suspension parts like shocks, struts, and coil and leaf springs, so whether you want a smooth street ride, responsive race handling, or rugged off-road control, you can find all the parts you need for your suspension upgrades here. We have complete lowering kits for a road-hugging sport stance, and lift kits to accommodate massive tires and greater suspension travel. Summit also has steering components, sway bars, frame rails and connectors, tie rods, wheelie bars, and wheel tubs, plus engine, transmission, and...

Welcome to the home of great handling and ride quality! We stock a huge assortment of car and truck chassis and suspension parts like shocks, struts, and coil and leaf springs, so whether you want a smooth street ride, responsive race handling, or rugged off-road control, you can find all the parts you need for your suspension upgrades here. We have complete lowering kits for a road-hugging sport stance, and lift kits to accommodate massive tires and greater suspension travel. Summit also has steering components, sway bars, frame rails and connectors, tie rods, wheelie bars, and wheel tubs, plus engine, transmission, and suspension mounts and bushings.

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Part Groups

Results 1 - 24 of 243

Summit Racing™ Quick Removal Flanges

Summit Racing™ quick-removal flanges allow you to make almost any tubular part of your car removable. These flanges weld in place of a sectioned tube, enabling you to easily unbolt that tube and reinstall it—for example, a transmission crossmember. Laser-cut from .250 in. steel and included with Grade 8 fasteners, the flanges are available in multiple sizes from 1 in. to 1 5/8 in.

4.0 out of 5 stars ( 4 )

$21.99

SPC Performance Bushing Extractor Tools

SPS Performance offers a wide range of specialty tools for maintenance and repair for both domestic and imported passenger vehicles, including bushing extractor tools that provide significant benefits in terms of time savings, cost reduction, safety, and efficiency. The specialized design of the bushing extractor tools allows for easy access to tight spaces, making jobs that would otherwise require a full disassembly much more manageable.

Not Yet Reviewed

$242.99

Rhodes Race Cars Quick Removal Rectangular Flanges

Rhodes Race Cars quick-removal rectangular flanges are specialized steel plates used in drag racing and performance cars to easily and securely attach tubular chassis components (like subframes, engine mounts, or suspension parts) to the main frame. They feature bolt holes for quick assembly/disassembly (often 4-bolt patterns), allowing for fast maintenance, upgrades, or removal of sections without cutting—meeting NHRA standards for strength. Available in multiple thicknesses and a dozen tubing diameters. Key characteristics and purpose: * Quick removal: Designed for fast disconnection, saving time during construction or repairs * Rectangular shape: The specific shape of the plate for connecting square or rectangular tubing * Chassis mounting: Used to mount accessories, suspension components, or crossmembers to the car's chassis * Strong and durable: Made from 3/16 in. thick steel with Grade 8 hardware (nuts/bolts) for high strength * Laser-cut for specific tubing diameters (i.e, 1 in., 1 1/8 in.) * NHRA Approved: Accepted for use in sanctioned drag racing events * How they work: You weld one flange to the end of your tube (e.g., a transmission crossmember) and another to the chassis; then, you bolt them together with the provided hardware, creating a strong, detachable joint. In essence, the flanges are strong, race-legal connectors for modular chassis building.

Not Yet Reviewed

$29.95

$39.95

Rhodes Race Cars Quick Removal Square Flanges

Rhodes Race Cars quick-removal square flanges are weld-in steel plates with four bolt holes, used in race car chassis building to easily detach components like transmission crossmembers or suspension parts. They feature a square design for 4-bolt patterns and are sized to fit specific tubing diameters (i.e., 1 1/4 in., 1 3/8 in.) for fast assembly and disassembly. Available in multiple thicknesses and a dozen tubing diameters. How they work: * Weld-In: One flange half is welded to your main chassis structure, and the other half is welded to the removable component (like a crossmember). * Quick-Release: When you need to remove the part, you simply unbolt the two flange halves, allowing for quick maintenance or adjustments without cutting or complex dismantling. * Standardized Sizes: Available for common tubing sizes (like 1 1/4 in. or 1 5/8 in. O.D.) and bolt patterns, ensuring a precise fit for many applications. Key features: * Material: Typically 3/16 in. or 1/4 in. thick steel * Design: 4-bolt square pattern * Purpose: Saves time during construction and makes servicing easier, often used for transmission crossmembers

Not Yet Reviewed

$29.95

$39.95

Rhodes Race Cars Quick Removal 2-Bolt Flanges

Rhodes Race Cars quick-removal 2-bolt flanges are specialized steel tabs/brackets used in race car fabrication for easily attaching and detaching chassis components. They feature two bolt holes for secure, yet fast, assembly/disassembly, saving construction time. The flanges are made from 1/8 in. steel, fit various tubing sizes (like 5/8 in. or 3/8 in.), and come with bolts—allowing builders to quickly mount suspension parts, accessories, or tubes that need frequent removal. Available in multiple thicknesses and more than a dozen tubing diameter options.

Not Yet Reviewed

$29.95

$39.95

Silver Sport Removeable Transmission Crossmember Kits

Upgrade your chassis with a Silver Sport removable transmission crossmember kit, designed for 1963–79 C2 and C3 Chevy Corvettes. The innovative kits transform the factory welded-in crossmember into a convenient bolt-in design, allowing for easier installation, removal, and access to your drivetrain. Perfect for restoration projects, performance builds, or transmission upgrades, these crossmember kits provide enhanced support and rigidity while simplifying maintenance and modifications. Each part meets high-quality standards for durability and fit.

Not Yet Reviewed

$99.00

DC Sports Upper Strut Bars

DC Sports front and rear upper strut tower bars work in conjunction with the factory suspension to strengthen the chassis by joining the two shock towers together. This helps to eliminate the flex created by performance driving, while improving the car's feel and handling. An easy-to-bolt-on design, which includes all necessary hardware and instructions, makes them a prime choice for your ride.

4.2 out of 5 stars ( 10 )

$142.50

Goodmark Rear Frame Crossmembers

Save money over the dealer price with Goodmark rear frame crossmembers. Manufactured from steel, they provide an OE fit and performance, just like the originals you are replacing. Restore and/or repair your classic vehicle with "the original mark of quality"—Goodmark.

Not Yet Reviewed

$337.99

Rhodes Race Cars Chassis Tabs

Rhodes Race Cars offers a wide selection of chassis tabs and welding brackets that are available in multiple configurations to suit your specific needs. These flange connections give you mounting points to easily install accessories on your chassis or suspension, saving you time during car construction.

Not Yet Reviewed

$1.49

$4.99

On Sale

Steeda Ford Mustang Rear Chassis X-Braces

Steeda Ford Mustang rear chassis X-braces reduce deflection and improve your suspension performance. They're crafted in-house from strong chromoly alloy steel tubing, then further reinforced with a billet aluminum center cover plate. The X-braces are powdercoated to resist the elements and provide long-lasting rigidity to your undercarriage. These units distribute loads more efficiently between your rear shocks, springs and the chassis—providing increased handling and cornering, while curbing rattles and squeaks. Most—but not all—models require a rear seat delete, and you can secure the braces easily with either a bolt-on or welded installation. Order the Steeda rear chassis X-brace designed for fitment on your Ford Mustang submodel.

5.0 out of 5 stars ( 4 )

$299.95


$248.78

Borgeson Universal Telescoping Steering Shafts

These Borgeson Universal telescoping steering shafts can be used in a variety of applications and will make the installation and removal of steering system components simple and easy. By pulling or pushing on the shafts, you can shorten or increase their overall length. They meet NHTSA guidelines for collapsibility in passenger cars and add a measure of safety. The steering shafts can also be trimmed to fit shorter applications.

4.76 out of 5 stars ( 403 )

$78.31

$357.06

QA1 Rear Trailing Arms

QA1 offers upper and lower rear trailing arms for Ford and GM applications in boxed, tubular, and heavy-duty adjustable options. All upper tubular and lower boxed trailing arms use polyurethane bushings on both ends, while upper adjustable and lower tubular trailing arms use a spherical ball or rod end assembly on the chassis end to eliminate bushing bind, allowing the suspension to move smoother for better control. They are powdercoated or zinc plated and anodized for a long-lasting finish. Keep your tires planted firmly on the ground for improved traction and a more predictable, better handling car with a set of QA1 rear trailing arms. Features may include: * Boxed trailing arms are constructed from 0.120 in. wall cold rolled steel tubing for maximum strength and flex elimination. * Tubular trailing arms are constructed from 1 1/4 in. diameter, 0.120 in. wall steel tubing which offers increased strength over other designs, but also have the added advantage of lighter weight. * Boxed and tubular styles feature fluted, greasable polyurethane bushings, which are superior to the stock rubber bushings. * Heavy-duty adjustable trailing arms allow easy rear suspension adjustments for optimum handling and traction. Simply loosen the jam nuts and adjust the pinion angle without removing the arms from the vehicle. They replace soft OE differential bushings with polyurethane differential bushings, and they use a spherical ball or rod end assembly with UHMW polyethylene bushings on the chassis end * Adjustable styles are available in aluminum and steel options

4.74 out of 5 stars ( 97 )

$182.95

$499.95

AJE Suspension Mustang Tubular K-Members

Lose some weight and gain some space with AJE Suspension Mustang tubular K-members. With steel components, your Mustang's front-end will receive K-member suspension technology to make your car that much better than stock. Available with or without engine mounts, AJE Suspension K-members are powdercoated black for exceptional, lasting good looks and will work with factory A-arms and springs with bolt-on perches. Remove some weight and add some strength to your pony with aftermarket AJE Mustang tubular K-members.

4.42 out of 5 stars ( 45 )

$356.99

$516.99

QA1 Four Link Conversion Kits

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.

5.0 out of 5 stars ( 3 )

$2,383.95

$2,597.95

UMI Performance Tunnel Mounted Torque Arms

UMI Performance tunnel mounted torque arms are a proven fourth-generation setup designed to remove the front mounting point of the torque arm off of the transmission, protecting the tailshaft from damage. They also work great for transmission swaps when a clamshell torque arm is not feasible. These torque arms include instant center adjustment brackets and can be purchased with or without a front driveshaft loop. They bolt into existing floor pan holes with no drilling or welding required.

4.69 out of 5 stars ( 39 )

$329.99

$599.99

QA1 1988-98 C1500 Front and Rear Coilover Conversion Systems

QA1 1988-98 C1500 front and 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 front control arms and rear torque arms are manufactured from 12-gauge HSLA steel tubing for increased strength and are powdercoated for long lasting durability. Topped off with performance ball joints and low-friction, maintenance-free bushings. Complete with adjustable instant center, panhard bar, and pinion angle to allow you to adjust the system to your exact needs. This kit will add more stability and allows for optimum camber adjustment in a lowered truck. Easily bolt in this system--no welding or bed removal required. Everything needed is included, all the way down to the hardware.

Not Yet Reviewed

$5,597.95

$6,879.95

QA1 1988-98 C1500 Rear Coilover Conversion Systems

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.

4.33 out of 5 stars ( 3 )

$2,887.95

$3,101.95

KYB AGX Adjustable Gas Shocks and Struts

AGX adjustable gas shocks and struts are built with the advanced engineering and quality that you would expect from KYB. The AGXs have velocity-sensitive valving that gives you a comfortable ride under gentle driving conditions, and yet automatically gets firmer as the driving gets more serious. These shocks let you tune the damping for your driving conditions without having to lift the vehicle or remove anything to change the settings. You select the damping rate simply by turning an external knob on the body of the shock, or via a screwdriver slot on the top of the piston rod, depending upon the make and model of the vehicle.

4.69 out of 5 stars ( 65 )

$96.41

$182.26

Rust Buster Leaf Spring Hanger Mounts

Rust Buster leaf spring hanger mounts are a weld-in replacement that adheres to OEM specifications, designed to seamlessly integrate with your vehicle's frame. Mounts are made from 3/16th steel—built to last, ensuring resilience and reliability for your truck's suspension system. Rust Buster leaf spring hanger mounts are shipped in their raw state, with an oil coating to help prevent oxidation during transit. The process of installation involves removing the original mount and preparing the frame by grinding it to clean metal. Once this preparation is complete, the mounts can be welded onto the frame, followed by reattaching the leaf spring to get your vehicle back on the road. Order the mounts recommended for your vehicle application.

5.0 out of 5 stars ( 7 )

$59.99

$99.99

Instant Rebate

TeraFlex Ball Joints

TeraFlex ball joints can help keep your Jeep's off-road integrity intact! Engineered to perform under heavy stresses with excellent wear, these replacement ball joint kits easily handle the increased load caused by oversized tires and offset wheels. The upper ball joints incorporate hard sintered wear bushings to endure extreme side load demands without failure; while the lower ball joints feature a threaded top cap for adjustable preload—and allow grease servicing without axle shaft removal. TeraFlex ball joints feature carbon steel housing with magnesium phosphate coated assembly, plus chromoly ball/stud with magnesium phosphate anti-corrosion coating. For easy maintenance, the TeraFlex ball joints include grease zerks.

5.0 out of 5 stars ( 7 )

$84.14

$339.99

OER Authorized Steering Column Bearings

OER Authorized steering column bearings are manufactured to OE specifications and will be sure to remove the excess play in your steering column. There are no better options than a quality OER Authorized part.

1.0 out of 5 stars ( 1 )

$66.99

UMI Performance Tubular K-Members

UMI Performance tubular K-members instantly remove 25 lbs. from the front of your vehicle, while maintaining strength for streetability and daily use. UMI Performance tubular K-members have been designed to handle everything from drag racing to daily driving and even autocross. Their dual tube center section adds increased strength over the competitors' designs, making them far superior and able to handle everyday stress and abuse. Additional front-end adjustment can also be achieved with these K-members. The lower A-arm slots feature a 1/2 in. adjustment built in and will work with the stock and any aftermarket A-arm setup. The front and rear A-arm slots also feature additional bracing to withstand hard side loads and extreme pressure. These tubular K-members also feature integrated motor mounts, eliminating the stock cast iron mounts for maximum weight savings. Additional features include: * Main center tube constructed from 1.500 in. x 0.120 in. seamless steel tubing * Additional cross braces use 1.250 in. x 0.120 in. seamless steel tubing * TIG and MIG-welded construction for superior strength * Front and rear A-arm mounts CNC-machined and fabricated from 0.188 in. thick steel * Rear A-arm mounts gusseted to withstand extreme side loads and pressure * Dual tube center section adds increased strength over any competitor's design * All mounting plates are CNC-machined to ensure hole-to-hole accuracy * Factory locator pins included for easy installation and exact fit * Completely fixture-welded to ensure factory fitment with no grinding or cutting

4.67 out of 5 stars ( 18 )

$699.97

$1,566.96

UMI Performance Front Non-Adjustable Lower A-Arms

A lightweight setup capable of handling everyday street abuse! UMI Performance front non-adjustable lower A-arms remove 5 1/2 lbs. from of the front of your vehicle, while adding increased ride quality and reducing bushing deflection. These suspension control arms are supplied with new greaseable ball joints installed, polyurethane or Delrin® bushings, and sway bar mounting provisions. The A-arm replacements are fabricated using 1.250 in. drawn-over-mandrel tubing and CNC-machined ball joint holders. They feature both MIG and TIG welding for the utmost in product strength. Order the pair recommended for your vehicle. Additional features: * 1.250 in. x 0.120 in. mild steel tubing * Shock mounts are CNC-machined from 0.188 in. steel plate * Supplied fully assembled and ready to install * Durable black or red powdercoat finish * Use OEM hardware

4.2 out of 5 stars ( 10 )

$669.93

$789.99

Stifflers Suspension Weld-On Subframe Connectors

Stifflers Suspension weld-on subframe connectors are engineered to be stiff, lightweight, and easy to install. These full-length connectors are manufactured from 1.5 in. x 2 in. x .083 in. rectangular tubing. They are optimized using CAD/CAE software to provide the ultimate in stiffness, reduced weight, and maximized surface area between the subframe and connector. Stifflers subframe connectors feature crimped and welded tube ends to seal out moisture, while also increasing strength, and a laser-cut cross brace that reduces free span, reinforces the floor pan, and minimizes required welding during installation. All is given an industrial-grade powdercoat for long life. Welding areas are pre-masked, so no removal of powdercoat is needed before installation--a real time-saver!

5.0 out of 5 stars ( 11 )

$189.95