Chassis Components - Frame Brace, K-Members & More

Rust Buster Coil Spring Buckets

Rust Buster rear coil spring buckets help to replace the upper coil spring buckets on your JK. The EZ Slip design allows the repair section to slide onto the frame—and will include all the factory needed holes and mounting locations. Rust Buster uses the latest in CAD design to model each repair section before it's laser-cut, formed, and finish welded. These repair sections will help to keep your Jeep on the road for years to come. The buckets are available for the left and right side. Order the models recommended for your application. Additional notes: * Made from .125 in. cold-rolled steel * Product ships RAW and uncoated * Welding required to install

Not Yet Reviewed

$149.99

On Sale

Artec Industries JL/JT to TJ APEX Front Swap Bracket Kits

Artec Industries JL/JT to TJ APEX front swap bracket kits upgrade your Jeep with heavy-duty coil buckets and a robust truss. Engineered to precisely fit JL/JT axles, each kit boasts 3-D-accurate fitment, American-made steel for unrivaled strength, and a seamless weld-on installation that maintains proper clearance. Take on challenging trails with confidence, knowing your rig is fully equipped for the journey with Artec coil bucket brackets. Features and benefits: * Crafted from premium-grade steel, these coil buckets deliver exceptional strength and durability for unmatched performance, even under the harshest off-road conditions * A precision fit engineered to weld seamlessly onto Jeep JL or JT front axles, ensuring precise suspension alignment and a secure, long-lasting fit * Developed using advanced 3-D data from Dana Corp/SPICER and OEM vehicle specifications, guaranteeing the perfect fit and optimal clearance for your suspension setup

Not Yet Reviewed

$199.00

$169.15

On Sale

Artec Industries JL/JT to TJ APEX Front Swap Kits

Artec Industries JL/JT to TJ APEX M210 front swap kits upgrade your Jeep with heavy-duty coil buckets. Engineered to precisely fit JL/JT M210 axles, each kit boasts 3-D fitment, ensuring every angle aligns perfectly for optimal ride quality, top-tier performance and reliability. Whether you're navigating rocky trails or cruising highways, these coil buckets deliver the stability and performance upgrade your build demands. Ditch the guesswork and outfit your TJ with a tailored, professional-grade solution from Artec Industries. Features and benefits: * Crafted from premium steel for robust strength and lasting durability, ensuring reliable performance even in the most challenging off-road environments * Designed to weld seamlessly onto Jeep JL or JT front M210 axles, delivering an exact fit that guarantees proper suspension alignment and stability * Developed using advanced 3-D data from Dana Corp/SPICER and OEM vehicle specifications, ensuring precise fitment and optimal clearance for your build

Not Yet Reviewed

$299.00

$254.15

Heidts Chassis Stiffeners

Heidts chassis stiffeners are designed to strengthen the unibody and improve ride quality. These heavy-duty steel braces are completely bolt-in, with no cutting required. Hardware is included.

4.2 out of 5 stars ( 5 )

$461.00

Allstar Performance Trailing Arm Brackets

Allstar Performance trailing arm brackets are a solid steel construction. They allow you to set the trailing arm angles to help your car turn through the center and are available in assorted styles. The single steel brackets can be used as front mounts for leaf springs or trailing arms.

4.0 out of 5 stars ( 1 )

$5.99

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$27.49

BMR Premium K-Members

BMR Premium K-members are direct replacements for factory K-members, removing 15.5 lbs. from your vehicle's front-end. The reduced weight results in increased weight transfer and better traction. Premium K-members feature increased bracing for heavy-duty, road race construction, welded spring seats for use with conventional springs and struts, and their installation requires no modifications for fitment. Additional features: * Uses SN95 steering geometry * Increased weight transfer * Maintains stock engine height * DOM 1.50 in. main cross bar, 3/16 in. steel plate * Durable Black Hammertone or Red powdercoat finish

4.0 out of 5 stars ( 3 )

$529.95

Rust Buster Frame Repair Sections

Rust Buster frame repair sections help you replace those rusted or damaged frame rail areas on your truck or SUV. The EZ slip design allows the repair section to slide onto the frame and will include all the factory needed holes and mounting locations. Rust Buster uses the latest in CAD to model each repair section before it is laser-cut, formed and finish welded. Keep your ride on the road for years to come with Rust Buster frame repair sections.

4.56 out of 5 stars ( 39 )

$89.99

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$429.99

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

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$516.99

Real Deal Steel Wider Wheel Well Tubs

Live large and make your mark on the boulevard! When you want to add the big spin to your 1955-57 Chevy, wider wheel well tubs are the first step to expanding your wheelbase. Real Deal Steel can help you broaden your wheel wells by 2 5/8 in. inboard, allowing the use of up to 13 in. wide tires (when used with a rear spring pocket kit, sold separately). If you want wider wheels and tires with the appearance of normal wheel wells, rely on Real Deal Steel--your "go to" guys for classic Chevy fabrication.

4.25 out of 5 stars ( 4 )

$499.99

Global West Suspension Subframe Connectors

The more improvements you do to the vehicle, the more demands are put on the body. These Global West subframe connectors provide additional support to increase the integrity of the chassis. They are a must for any performance application. They're built out of round 1 5/8 in. x .125 in. wall roll cage tubing. The construction attaches to the factory support rails located directly under the front seats. The rear portion of the subframe attaches to the rear leaf spring mount and frame rail. Additional gussets are included in the kit, which add support to the rear spring mount. Welding is required for installation.

4.7 out of 5 stars ( 98 )

$225.72

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$350.75

California Pony Cars AOD Conversion Installation Kits

California Pony Cars AOD conversion installation kits are designed to convert your 289/302/351W engine from a C4 or C6 transmission to an automatic overdrive transmission. Order the kit designed for your Mustang year/application. AOD conversion installation kits include: * Crossmember * Trans-mount insulator * Slip yoke * Kick-down cable * Flexplate * AOD shift linkage * Throttle return spring bracket on select kits Note: California Pony Cars AOD conversion kits do not include actual AOD transmission and may require additional parts.

4.6 out of 5 stars ( 5 )

$731.99

Detroit Speed Weld-On Subframe Connectors

Detroit Speed weld-on subframe connectors join your front subframe and rear frame rails to increase your car's stiffness. These uniquely designed DSE connectors are fabricated from thick-wall rectangular steel tubing. They are bent and TIG-welded in a fixture for accuracy and repeatability. Unlike others, these DSE subframe connectors are barely visible from underneath the car, offering maximum ground clearance. Plus, they won't interfere with seat attachment hardware or the installation and removal of the rear leaf spring pocket. And, your molded factory carpet will still fit over the subframe connectors. Detroit Speed weld-on subframe connectors can be installed on convertibles and are supplied with templates, pictures, and detailed instructions for installation.

5.0 out of 5 stars ( 2 )

$283.95

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$692.95

Brothers Trucks Crossmember Exhaust Brackets

Lowering your truck is cool, but when you do, where are you going to put the exhaust--under the frame? You'll run out of room, real quick. Well, Brothers Trucks has the solution in their crossmember exhaust brackets. These kits include meaty steel components--brackets, bolts, and template—that allow modification of the factory trailing arm crossmember for dual exhaust. They are ideal options if you don't want to remove the crossmember and still be able to tuck the exhaust up inside the frame, and they are the perfect solution for someone that doesn't have access to a welding machine. The provided metal template allows perfect alignment for the bolt holes and exhaust cut out. It utilizes an existing hole in the crossmember to locate the template, then insert one of the supplied bolts, clamp in place, and mark the remaining holes for drilling. For the center hole, the hole in the template is larger to allow a plasma torch to be used as a guide, but if you don't have a plasma torch other means, such as a hole saw, can still be used to cut the hole. Get more clearance for exhaust without weakening your truck's frame when utilizing Brothers Trucks crossmember brackets. Features: * Exhaust tailpipes fit through the holes in the frame for easier installation and more ground clearance when adding dual exhaust * Fits rear wheel drive trucks with trailing arm and coil spring rear suspension * Steel construction * Allows up to 3 in. dual exhaust system * Includes two pre-welded cut-out pieces, drilling template, and Grade 8 fasteners

5.0 out of 5 stars ( 1 )

$157.95

QA1 GM K-Members

QA1's tubular K-member for the 1982-1992 Chevrolet Camaro/Pontiac Firebird (F-body) is a significant front-end upgrade. Designed for reduced weight and increased clearance for headers and oil pans, QA1's K-members make a great upgrade for both street performance and track vehicles. QA1's engineers prioritized superior strength when designing these K-member components which reinforces the front-end unibody structure while optimizing weight savings. Unlike other K-members that lock you into a single setup, QA1 K-members offer unmatched versatility with their modular engine mounts (sold separately) that let you switch between engines and transmissions without needing a new K-member. No other K-member offers this level of adaptability, making QA1 the ultimate choice for a seamless build. The K-members offer the flexibility to be used with either coilover struts or QA1 spring sliders, depending on your performance goals. Coilover struts, like QA1's adjustable Proma Star Struts, can also provide a significant performance boost for your 3rd Gen Camaro or Firebird with the ability dial-in the perfect ride height. For those looking to achieve the perfect stance with greater negative camber, while accommodating wider wheels and tires, inboard spring sliders by QA1 are another great option. The inboard spring slider option also helps to maintain spring loads near the factory position on the QA1 K-member. Features and benefits: * Steel suspension subframe crossmember * High-strength design with powdercoat finish * The unique design of QA1's K-members allows the use of interchangeable engine mounts (sold separately) for easy engine swaps—choose from modular engine mounts (sold separately) that either allow you to reuse your existing small block engine and transmission combination or swap to a big block Chevy, or more modern LS and Gen V LT * Substantial weight savings—shedding 32 lbs. while increasing clearance and enhancing accessibility to the front of your car, this is an ideal upgrade! * Compatible with QA1' spring sliders or QA1's coilover struts (sold separately) * You can make your driveline swap even easier by using QA1's transmission crossmembers and torque arms (both sold separately) * Bolt-in installation—QA1's commitment to thoughtful product design is evident in their fully bolt-in kits, providing an easy installation process Fitment Notes: Must use QA1 lower control arms (sold separately). Not compatible with factory coil springs. Must use QA1 coilover struts or QA1 spring slider kit (both sold separately). Engine mounts sold separately.

Not Yet Reviewed

$734.95

On Sale

Competition Engineering Formed Rear Frame Rails

Competition Engineering formed rear frame rails adds some beef to your suspension. The "chassis people" have designed and manufactured these to replace the stock sheet metal rear rails in your subframe equipped car. CE's rails are mandrel-formed 2 in. x 3 in. x .083 in. wall mild steel tube that will increase the chassis strength for quicker vehicle reaction times. Plus, they have been engineered to move the leaf springs and frame rails inboard to provide additional tire clearance. Strengthen your suspension to put more power to the pavement utilizing a pair of Competition Engineering formed rear frame rails. Additional information: * Designed to fit stock floor contours with minor fabrication * Requires use of a fuel cell, rear fenderwells and an upper shock crossmember * Use with Competition Engineering weld-in subframe connectors * Two rails and hardware per kit

4.19 out of 5 stars ( 16 )

$416.99

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$461.99

$375.29

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$415.79

Rust Buster Body Mount Brackets

Water, dirt, and salt commonly gets trapped between the body mounts and bushings, causing them to rot and rust. Rust Buster body mount brackets are designed to effectively address these common issues. The brackets are made from robust steel, each bracket is engineered for a perfect fit, precision bent and welded, and all necessary factory holes and mounting locations are integrated into the bracket design, ensuring a smooth and straightforward installation process. Rust Buster includes the necessary hardware, all you have to purchase some new bushings, weld-up the new bracket, paint it, install the new bushings, bolt the cab down and you are on the way. Order the brackets for your application needs. Product details: * Made from high-quality heavy-duty 11-gauge steel * By utilizing the latest in Scanner Solutions and CAD Software Rust Busters' engineering team is able to capture your specific model truck's frame contours down to the smallest detail * Each bracket is precision bent and welded for ease of installation and a perfect fit * Fits regular cab, access cab and double cab * Available in applications for driver or passenger side—depending on your application, brackets mount on frame near front of Cab or in front of the forward leaf spring perch * Includes two welded nuts and two bolts for body mount flange * Accepts OEM body mount bushing and flange along with most aftermarket alternatives * Parts ships with an oil protective coating to prevent oxidation during transit * Requires welding for installation

Not Yet Reviewed

$59.99

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$269.99

Allstar Performance Clamp-On Shock/Trailing Arm Brackets

Allstar Performance clamp-on shock/trailing arm brackets are offered in different versions to meet your mounting needs. These steel brackets clamp-on 3 in. axle tube for attachment of coilover shocks and trailing arms; or shock, trailing arm, and 5 in. O.D. coil spring. Grade 5 hardware is included with all bracket styles.

4.67 out of 5 stars ( 3 )

$84.99

RT Off-Road Control Arm Brackets

Front coil springs need control arms to center the axle evenly under the vehicle, while driving down the road or flexing over obstacles. RT Off-Road control arm brackets are designed with extra steel around the mounting holes, where stock units are prone to failure. In order to dial-in the caster, these brackets use a slotted bolt design. Front coil springs make for a comfortable ride—and with sway bar disconnects, they have incredible flex, too. Keep your Jeep's front axle from getting out of whack with RT Off-Road control arm brackets. They're available for a wide range of applications, from 1984 and up.

4.0 out of 5 stars ( 1 )

$44.99

OER Authorized Bolt-In IFS Conversion Kits

OER Authorized bolt-in IFS conversion kits are available for 1947-54 GM pickups with a V8 engine. The kits will improve your vehicle's ride, handling, and performance. These steel crossmember kits convert your antiquated stock front suspension and steering box to a more modern 1974-78 Mustang II or 1974-80 Pinto/Bobcat setup. Enjoy better handling with the addition of rack and pinion steering and twice the suspension travel when compared to stock. Combine this advancement in steering and suspension with the added benefit of modern braking power, and this setup becomes a no-brainer. The bolt-in kit is designed for use on 1947-54 Chevy 1/2 ton or light-duty 3/4 ton frames, and will drop the ride height approximately 2 1/2 to 3 in. using stock Mustang II front spindles. Lower control arm pivot tubes and gussets are not included in this kit. (A weld-in crossmember it is also available, if preferred.) Specs: * Bolt-in components. No welding required * Proven Mustang II geometry * Can use stock 1974-78 Mustang II or 1974-80 Pinto suspension components, except control arms. * Requires tubular control arms (strut-less style lowers) * Interlocking bolt-in boxing plates reinforce frame for strength * Requires power steering rack * Stock spindles will drop ride height 2-1/2" - 3 inches * Will work with small block or big block Chevy engines * Not for use with air-ride front ends Note: Additional items may be needed to complete installation, including but not limited to tubular control arms, spindles, coilover springs/shocks, rack and pinion steering, tie rods, calipers, rotors, inner tie-rod extensions. Important: Lower control arms need to be level with the ground (with all the weight on the vehicle) for correct steering geometry.

5.0 out of 5 stars ( 1 )

$404.99

WEHRS Axle Tube Clamps

WEHRS Machine Racing Products offers a large variety of axle tube clamps to cover your axle-chassis fabrication needs. From spring perches to shock mounts and ballast brackets, WEHRS tube clamps allow a variety of modifications for your Modified, Late Model, or street car needs.

5.0 out of 5 stars ( 2 )

$34.99

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

AJE Suspension Camaro/Firebird Tubular K-Members

Lose some weight and gain some space with AJE Suspension Camaro/Firebird tubular K-members. With these mild steel or chromoly components, your F-body's front-end will receive K-member suspension technology to make your car that much better than stock. These K-members are available with or without engine mounts, are powdercoated for exceptional, lasting good looks, and they work with factory A-arms and springs with bolt-on perches. Remove some weight and add some strength to your third or fourth generation F-body with aftermarket Camaro/Firebird tubular K-members from AJE Suspension.

Not Yet Reviewed

$555.99

PEM Racing Trailing Arm Brackets

PEM Racing offers trailing arm brackets for a variety of applications, including many Buick, Chevrolet, GMC, Oldsmobile, and Pontiac cars and trucks. Fabricated from steel for a 3 in. tubing diameter, the brackets are available in weld-on or bolt-on models. These trailing arm suspension parts mount the trailing arm to the vehicle's frame or axle. They typically include mounting points for the trailing arm, shock absorbers, and sometimes springs. Trailing arm suspensions are often found in rear suspension systems, and the bracket helps to control the movement and location of the trailing arm.

Not Yet Reviewed

$124.99

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$152.99

On Sale

Artec Industries JK/JL/JT 1 Ton APEX Front Super Duty Swap Kits

Artec Industries JK/JL/JT 1-ton APEX front Super Duty swap kits are stronger in design, lighter in weight, and easier to install. The patent-pending APEX trusses take these features to a whole new level along with precision fitment, and complete axle protection. Available with three different styles of upper control arm brackets, the kits contain upper and lower control arm mounts, shock mounts, anti-sway bar mounts, track bar mount, bump stop pads, and coil spring mounts. Features: * CNC precision laser-cut in-house from 1/4 in. and 3/16 in. mild steel * CNC precision bent in-house for a great fitment--literally drop the truss in place on the axle and it's ready to weld * Designed used 3D models directly from Ford and Jeep for not only an amazing fit but clearances with surrounding components * 70 percent less welding needed than previous truss designs mean less warping, faster turnaround, and lower costs * All long seams are bent so you don't need to spend time welding them together * Dimpled holes provide not only weight reduction but rigidity and strength * Contours both the cast steel differential and can be welded with normal MIG welder and moderate pre-heating and post-heating * OEM location upper control arms mount to an ultra-high clearance differential bridge that hugs the shape of the casting (bushing or Johnny Joint option) * Truss extends under coil buckets all the way to inner C for end-to-end rigidity * Multi-piece truss design means smaller packaging with easy installation * Using a 1-ton axle will support larger tires and less chance of breakage in extreme conditions * Coil brackets and bump stop pads are combined to form an axle tube truss and allows for easy installment of other brackets * Heavy-duty track bar bracket can slide to multiple positions for steering geometry fine tuning * Shock brackets have been moved up and out (compared to JK OEM position) for a slightly higher clearance lower control arm bracket

Not Yet Reviewed

$593.99

$504.89