Chassis Components - Frame Brace, K-Members & More

Lares Power Steering Pump Rubber Mount Kits

Lares power steering pump rubber mount kits are specialized, high-quality components designed for securing crankshaft-driven power steering pumps on vintage vehicles, primarily 1958-69 Lincoln and Mercury models. These kits feature OE-grade rubber to meet original specifications, reducing vibration and ensuring durable mounting. Additional details: * P/N LSC-186 is designed specifically for 1958-60 Mercury (Colony Park, Commuter, Montclair, Monterey, etc.) and 1959-69 Lincoln (Continental, Capri, Mark III, Premier) * Function: Rubber mounting kit for crankshaft-driven power steering pumps * Engineered to meet or exceed OE specifications in fit, function, and performance * These kits are essential for replacing worn or degraded rubber mounts to restore proper power steering pump alignment

Not Yet Reviewed

$36.99

On Sale

aFe Control Front Suspension Strut Braces

Stiffen up your chassis and give your engine bay a unique look with aFe Control front suspension strut braces. Fabricated with 14-gauge steel, the I-beam design is meticulously TIG welded to form a lightweight, strong brace that will increase front end rigidity, thus improving turn-in response. Features: * Grade 5 burnt blue Titanium mounting bolts -- Four M10 bolts for vehicles that already have factory braces -- Two M8 thru bolts and nuts for the models that did not come with braces from the factory * Direct-fit installation requires no modifications * Available raw or with a durable wrinkle black, blue, or red powdercoat

Not Yet Reviewed

$262.00

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$285.00

$235.80

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$256.50

Summit Racing™ Dual-Exhaust Transmission Crossmembers

Summit Racing™ steel transmission crossmembers allow you to run a true dual-exhaust system with most popular GM transmissions. They have a patented double-hump design, so you don't have to compromise ground clearance by running pipes under the crossmember, and they're a complete bolt-on deal—no custom fabricating or realignment is needed. The parts are made from 1/8 in. thick boxed tubing to handle the frame-twisting power of big blocks. Order the crossmember recommended for your vehicle and transmission application.

4.68 out of 5 stars ( 600 )

$59.99

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$476.99

QA1 C10 Crossmember Retrofit Kits

Already have a QA1 coil-over conversion system on your C10? QA1 C10 crossmember retrofit kits add powered rack and pinion steering, offers 2 in. of additional drop range (up to 8 in. total), and saves an additional 70 lbs. of weight. These bolt-in upgrades improved drivability and steering feel while achieving the perfect stance. Choose the kit for your model year. Features and benefits: * Powered rack and pinion steering -- Provides quicker and tighter steering, plus increased steering angle when fitting larger wheels and tires and improve geometry for enhanced drivability. * Improved ground clearance -- The tubular design makes your under cab rails the truck's lowest point. Updated lower shock mounts add clearance and new upper shock mounts increase travel for a great ride and performance, even at lower ride heights * Compatible with existing QA1 coilover systems -- Easily swap out a few components on your existing QA1 shocks and control arms, allowing you to upgrade your truck in stages, starting with coilovers and control arms * Easy, bolt-in installation -- The crossmember comes powder coated and ready to install, no cutting or welding your frame. It easily locates the steering rack, and you can choose mounts (sold separately) for common engines.

5.0 out of 5 stars ( 1 )

$2,450.95

Silver Sport Transmission Crossmembers

Silver Sport transmission crossmembers are CAD-designed from heavy-duty formed and powdercoated steel. They offer strength and accuracy, two essentials of a crossmember. These SST vehicle-specific crossmembers are stiff and resistant to deflection, meeting or surpassing the original design, meaning they won't flex during hard launches or on rough roads. They are engineered to provide the proper driveline angle eliminating installation issues seen with adjustable crossmembers, as well as vibration issues and possible U-joint damage. Exhaust and ground clearance are also taken into consideration. Silver Sport transmission crossmembers locate the transmission at not only the proper height and angle, but makes sure it stays there, regardless of power, torque, or road conditions. Order the one for your specific vehicle.

4.75 out of 5 stars ( 4 )

$199.95

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$299.95

UMI Performance A-Body Frame Rail Braces

With modern high-grip tires, improved suspension, and big power, today's muscle car chassis need more help than ever. UMI Performance A-body frame rail braces improve chassis rigidity, reduce steering gear movement, and provide crisper handling. UMI pairs precision laser-cut brackets with strong tubing to reinforce the front frame sway bar mounting area. These direct bolt-in braces use existing hardware, require no cutting or welding, and are available in gloss black or UMI red. Features include: * 1.250 in. tubing * 3/16 in. laser-cut brackets * Race-proven * Requires no holes to be drilled. * Can be used with OEM sway bar bushings or aftermarket poly mounts * Installation time is approximately 20 minutes * Tested with factory sway bars and UMI sway bars * Check fitment for other aftermarket or custom sway bars

4.88 out of 5 stars ( 25 )

$159.99

Stifflers Suspension Mustang FIT Systems

Stifflers Suspension Mustang FIT (Fully Integrated Technology) systems offer a proven way to keep your Mustang's muscles fit! The FIT system integrates the front and rear subframes and ties them into the rocker panels to form a triangulated web of strength and stiffness that helps keep your car in shape for improved handling, launches, and ride quality. The strong steel stiffeners beef up your Mustang for an increased range of suspension tuning and overall performance. Twisting and bending is good conditioning for humans--not vehicles. The best exercise for your Mustang is Stifflers FIT system. Stifflers Mustang Fit System benefits include: * Transfers more power to the ground, not wasting it twisting and bending the chassis * Launches straighter * Stiffer chassis reduces or eliminates interior rattles and extends the life of the vehicle * Weld locations are free of powdercoat--no removal of powdercoat required before installation * Non-intrusive design; no floors to cut, interior to remove, or lines to relocate * Tube ends are sealed to keep out moisture * Ground clearance remains unchanged * Increases side impact safety * Can be used with factory convertible braces with only slight modifications

3.67 out of 5 stars ( 3 )

$354.95

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$569.95

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 Transmission Crossmembers

Transmission crossmembers help to distribute and maintain the forces and torque that result from the output of the engine and transmission. As time passes, ageing, exposure to the elements, etc., corrosion can set in creating a dangerous situation. Luckily, with a combined 45 years of experience, the Rust Buster engineering staff have a solution. Their transmission crossmembers will help to maintain your truck or SUV's structural integrity and keep it powering through the roads for years to come. By utilizing the latest in scanner solutions and CAD software, Rust Buster transmission crossmembers are designed and built, capturing all the correct contours and guaranteeing a perfect fit and an easier installation on your vehicle. Put an end to your rust issues with Rust Buster. Select the crossmember designed for your vehicle. Features: * Made from heavy-duty 11-gauge steel * Protective oil coating prevents oxidation during shipping * Back by a Lifetime Warranty * Transmission support plate (where applicable) * Welding required (where applicable) * OEM hole locations * Class 10.9 hardware (where applicable)

Not Yet Reviewed

$199.99

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$499.99

QA1 Tubular Braces

These tubular braces from QA1 are designed to work with GM A-body and G-body trailing arms to accurately locate the rear suspension. This creates major improvements in cornering, steering response, and traction, with less wheel-hop and more power to the ground.

4.38 out of 5 stars ( 8 )

$187.95

Bowler Performance Transmission Crossmembers

Transmission crossmembers get the power under your vehicle's hood to the tires on the ground. Correctly locating and supporting your transmission can help make that happen, as well as achieving the proper driveline angles to avoid possible issues in your drivetrain. Bowler Performance provides several crossmember designs to fit a variety of engines and Tremec transmission combinations (some will work with any transmission, including automatic units). Bowler crossmembers are easy to install, offer strong steel construction, a durable black powdercoating, and most include hardware. They are designed to allow the use of stock height or half-height body bushings and the use of dual exhaust. Choose the crossmember designed for your vehicle/engine/transmission setup.

Not Yet Reviewed

$379.99

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$463.99

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

QA1 Strut Tower Braces

QA1 strut tower braces allow the substructure of the chassis to be fully triangulated. This amounts to more precise steering input, better alignment, and reduced flexing for the ultimate in cornering power and control. They're made from high-quality steel tubing and are black powdercoated for good looks and corrosion resistance.

Not Yet Reviewed

$209.95

Steeda Hardcore Differential Support Brackets

Steeda Hardcore differential support brackets are engineered to dramatically strengthen the factory independent rear suspension by locking the differential in place and redistributing load away from the vulnerable front mounting ears. Developed to prevent housing damage under hard launches, these heavy duty, bolt in brackets reduce wheel hop, minimize pinion rise, and significantly limit differential movement so more power is transferred to the ground instead of being lost through bushing deflection. Steeda's triple shear mounting configuration eliminates the factory single shear weakness, increasing load capacity and durability, while upgraded hardware adds an extra margin of safety for high traction tires and aggressive driving. Ideal for performance focused builds, Steeda Hardcore differential support brackets deliver improved drivetrain stability, consistent launches, and enhanced reliability when traction and power are pushed to the limit

Not Yet Reviewed

$249.95

Roadster Shop SPEC Chassis Kits

Roadster Shop SPEC chassis kits offer Roadster Shop quality at an affordable price point. The SPEC Series is an engineering-focused approach, using the latest in manufacturing technology, to build the lightest, strongest, and easiest-to-install complete chassis systems. These technologies have been used to streamline procedures resulting in lower cost and shorter lead times. The SPEC independent front suspension is engineered to deliver outstanding performance in a user friendly package. It features proprietary suspension geometry designed to provide the best balance of ride quality and performance in its class. Available as On-The-Shelf, pre-configured chassis or custom specifications to suit your needs. Features and benefits of Roadster Shop SPEC chassis kits include: * Full-chassis performance at a smaller component price * Unparalleled quality * Add the strength of a full frame with no floor modifications on most applications * CNC laser-cut, TIG-welded, and contoured "Laser Rails" frame rails * No kinks, bends, or stressed areas that are prone to flex like mandrel-bent tubing * Stronger, lighter, and more precise * CNC-located factory mounts built into the frame for easy, vehicle specific installation * Frame rails accommodate mini-tubs and wider wheels * Aggressive ride heights for the modern pro-touring look * Choice of coilover or air suspension for many applications * Air suspension chassis will lay the rockers on the ground (varies with tire size) * Truck rear frame rail kick ups engineered for minimal bed modifications while allowing rockers to lie on the ground * Crossmembers and chassis bracing allow 3 in. exhaust * Adjustable, drop-out transmission mounts (tunnel mods may be necessary for larger T-56 and 4L80 transmissions) * Vehicle specific body (cab and bed on trucks), bumper, and core support mounts * Single-adjustable billet coilovers * Power rack and pinion steering * Easy-to-adjust upper A-arm eccentric mounts for fast and accurate alignments * Wilwood Pro Spindles * Parallel 4-bar rear suspension * Ford 9 in. housing with 31 spline axles * Optional mounts, coilovers, sway bars, brake packages, and rear-end gearing available on custom-order chassis * 5 x 4.75 wheel bolt pattern * Frames are shipped as bare steel

4.21 out of 5 stars ( 14 )

$20,375.99

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$20,649.99

Granatelli Motor Sports Bolt-On Subframe Connectors

These Granatelli Motor Sports bolt-on subframe connectors are designed to strengthen the chassis and improve traction and handling. They are manufactured from heavy-duty steel and mandrel-bent tubing and are then powdercoated for protection. Put more power to the ground with a set of Granatelli Motor Sports bolt-on subframe connectors.

Not Yet Reviewed

$212.80

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

$1,323.95

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$2,695.95

Stifflers Suspension F-150 Chassis Stiffening Systems

It's a known fact; during acceleration, cornering, and braking your chassis will flex and twist. The more power you add or the stiffer the suspension, the worse it becomes. All this movement uses up valuable horsepower, decreases handling characteristics, and reduces ride quality. So why spend time and money improving your engine and suspension when it's attached to a flaccid frame? Stifflers Suspension F-150 chassis stiffening systems bridge the front and rear sections of the F-150 frame to significantly increase its stiffness and reduce the twisting and bending caused by suspension inputs and drivetrain torque. The systems are designed for ease of installation with minimal drilling--all other mounting locations use existing holes. Stifflers F-150 chassis stiffening systems are complete with integrated brackets for optional driveshaft safety loops (sold separately). So what does this mean for you? * Straighter launches * Less wasted horsepower * More responsive suspension tuning * Improved handling under cornering and braking * Better ride quality * Fewer squeaks and rattles NOTE: Other manufacturers' long bars cannot be used with these systems.

Not Yet Reviewed

$549.95

Roadster Shop 1968-72 Chevelle SPEC Chassis Kits

SPEC is an engineering focused approach using the latest in manufacturing technology to build the lightest, strongest, and easiest to install complete chassis system. These technologies have been used to streamline procedures, resulting in lower cost and shorter lead times. The SPEC independent front suspension is engineered to deliver outstanding performance wrapped up in user-friendly package. A completely new proprietary suspension geometry has been designed to provide the best balance of ride quality and performance in its class. Roadster Shop offers SPEC chassis kits for 1968-72 Chevelle models. Product benefits: * No kinks, bends or stressed areas that are prone to flex like mandrel bent tubing * Ability to contour to stock floors for a low-profile design. * Stronger, lighter, and more precise * CNC-located factory mounts built into the frame for easy, vehicle-specific installation * Frame rail designs to accommodate mini-tubs * Aggressive 7 in. ride height for the modern pro-touring look * 100 percent bolt-on application Standard features: * RS exclusive "Laser Rails" precision CNC laser-cut and contoured * Crossmembers and chassis bracing to allowing for 3 in. exhaust * Engine mounts for SBC, BBC, or optional LS & LT * Adjustable, drop out trans mount * Utlizes factory body, bumper, and core support mounts for a true bolt-on installation * SPEC IFS * RS SV by Fox fixed valve coilovers * Power rack and pinion steering * Easy-to-adjust upper A-arm eccentric mounts for fast and accurate alignments * Wilwood Pro Spindle * Parallel 4-Bar rear suspension * RS SV by Fox fixed valve coilovers * Ford 9 in. housing with 31 spline axles * Narrowed rear frame rails allow for wider rear tires when mini-tubbed

Not Yet Reviewed

$21,301.99

AWE Tuning Drivetrain Stabilizers

Shifting as it should be. AWE Drive Train Stabilizers (DTS) eliminate the excessive engine and transmission torsional movement found in specific vehicles. Installation the DTS results in phenomenal throttle response, crisper and more precise shifts, and more power to the ground. Made of T-6 6061 aircraft aluminum and CNC-machined in-house, each lightweight AWE DTS utilizes a polyurethane or high-durometer rubber bushing. They bolt directly to the undercarriage of your vehicle using existing factory mounting points, and no adjustments or modifications are required. They are designed to fit without clearance issues, fitting any exhaust system currently on the market. Select the AWE DTS with the mount best suited to your needs.

Not Yet Reviewed

$405.00

Sikky Manufacturing Quick-Change Differential Subframe Kits

Sikky Manufacturing quick-change differential subframe kits are crucial additions when building your race car to perform at the highest level. These setups give the user the ability to change their gear ratio in less than 5 minutes by simply removing the rear cover of the rear end. This is a huge advantage when dialing in your setup at the track to make sure your gearing is in the sweet spot and you're not forced to shift at inopportune times. They are also designed to handle massive amounts of power. Sikky designed, developed, and tested the subframe kits to precise tolerances using their advanced technology, like FARO 3D scanning arm and Solidworks CAD software. Perfect rear placement ensures that the differential is placed dead center every time for optimum CV joint angles while also remaining Formula Drift legal. Built to handle all the abuse a high-horsepower car can put out, each subframe comes preassembled with the necessary brackets welded on and the entire assembly powdercoated black. Select the one designed for your vehicle. Kit details: * Formula Drift legal * No subframe core required * CNC-machined mounting brackets * Fully assembled using FARO arm to ensure absolute perfect rear placement * Black powdercoated * Includes all necessary hardware * Fuel cell/tank relocation required in most applications

Not Yet Reviewed

$1,595.99

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$1,861.99

UMI Performance F-Body Frame Rail Braces

With modern high-grip tires, improved suspension, and big power, today's muscle car chassis need more help than ever. UMI Performance F-body frame rail braces improve chassis rigidity, reduce steering gear movement, and provide crisper handling. UMI pairs precision laser-cut brackets with strong tubing to reinforce the front frame sway bar mounting area. These direct bolt-in braces use existing hardware, require no cutting or welding, and are available in gloss black or UMI red. Features include: * 1.250 in. tubing * 3/16 in. laser-cut brackets * Race-proven * Requires no holes to be drilled. * Can be used with OEM sway bar bushings or aftermarket poly mounts * Installation time is approximately 20 minutes * Tested with factory sway bars and UMI sway bars * Check fitment for other aftermarket or custom sway bars

5.0 out of 5 stars ( 3 )

$159.99

Summit Racing™ Body Frame Rail Braces

Summit Racing™ body frame rail braces improve chassis rigidity, reduce steering gear movement, and provide crisper handling. With modern high-grip tires, improved suspension, and big power, today's muscle car chassis need more help than ever. These braces feature precision laser-cut brackets with strong tubing to reinforce the front frame sway bar mounting area. The direct bolt-in braces include hardware, so no cutting or welding is required. Choose the Summit Racing™ body frame rails for your application needs.

Not Yet Reviewed

$129.99

Detroit Speed Chassis Brace Kits

What's an easy way to increase chassis rigidity and eliminate power-robbing body flex to improve your ride's overall handling performance? It's Detroit Speed's chassis brace kits, of course! These chassis brace kits are designed to improve chassis rigidity, enhancing driver feedback, sharpening handling performance, and improving ride quality. The steel braces feature TIG-welded and machined ends, full adjustability, locking jamb nuts, and a powdercoated finish for good looks and long service. The kits are offered for the rear chassis section, or for the front chassis section, depending on your specific application needs.

Not Yet Reviewed

$322.95