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Chassis Components - Frame Brace, K-Members & More
Showing In Stock Items. Show All 50 Items.
RideTech MOMENTUM Chassis Kits
Ridetech, a leader in air and coil-over suspension systems for more than 30 years, proudly announces the launch of its MOMENTUM chassis kits. This all-new platform gives classic muscle car enthusiasts a clean-slate foundation for their next project—delivering modern handling, increased performance, and design flexibility beyond the limits of factory frames. Builders can now enjoy the benefits of a fully engineered chassis while tailoring the suspension to their preferred style of driving, whether that's comfortable street cruising, high-performance autocross, or full track use. Key engineering highlights include: * RideTech's MOMENTUM Chassis Series is a new platform for classic muscle cars, offering modern handling, optimized suspension, and modular options, initially for 1968-1972 models * Optimized suspension geometry—the chassis re-engineers pickup points to improve camber gain, caster, roll center, and Ackermann steering geometry * Enhanced stability—the chassis is significantly stiffer than a stock frame, which reduces flex and increases structural rigidity for more predictable handling * Improved cornering—a new integrated sway bar helps reduce body roll and improve balance, leading to sharper cornering and greater stability * Confidence-inspiring control—the design provides improved handling for both daily driving and more demanding situations like autocross or track events * Increased tire and wheel clearance—the chassis is engineered to accommodate larger, modern wheel and tire sizes that would not fit on a factory chassis * More aggressive fitment—allows for wider tires (e.g., up to 275mm front and 295mm rear) with room for larger fitments, especially when combined with mini tubs in the rear * Adjustable ride height—the system allows for roughly a 2-inch drop from stock but can be adjusted to the desired ride height * Kit offers modular suspension options that allow for air or coilover setups * Chassis is compatible with existing Ridetech A-body suspension components * Engine and transmission flexibility provides provisions for various motor mount plates (small block Chevy, Olds, Pontiac, Buick, GMLS, or Gen 5 LT) and features an adjustable crossmember that adapts to popular automatic and manual transmissions
Not Yet Reviewed
$19,650.00
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
( 17 )
$729.99
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$1,566.96
On Sale
Hooker Blackheart Transmission Crossmembers
Hooker Blackheart transmission crossmembers provide easy installation for a variety of engine and transmission swap combinations. Manufactured from steel with a black powdercoat, these crossmembers are designed to be used with Blackheart engine adapter plates for a trouble-free LS, LT, Hemi, Coyote, etc. engine swap. Order the model recommended for your vehicle. Blackheart crossmember features: * Comprehensively designed as an integral part of the complete Hooker swap system, providing maximum level of inter-component compatibility * Designed specifically for use with Hooker engine adapter plates * High-arch exhaust passages provide maximum available exhaust ground clearance * Design geometry replicates stock drivetrain height, inclination angle, and offset for optimized vehicle and component compatibility * High-strength/low alloy steel construction provides desirable balance of strength, stiffness, weight, and cost * Powdercoat finish provides attractive, corrosion-resistant appearance * Provide bolt-in compatibility with Hooker/Holley engine mounts, swap headers, exhaust systems, and oil pans * Hardware included
( 28 )
$409.95
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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$384.99
QA1 Transmission Crossmembers
QA1 transmission crossmembers provide an easy bolt-in option to simplify a transmission swap and even give you more space for your performance exhaust. When swapping a GM engine into a Mustang, for instance, GM transmission crossmembers are required to bolt in the transmission. Unless otherwise noted, a polyurethane transmission mount and mounting hardware are included. Order the model designed to fit your application.
( 2 )
$264.95
Summit Racing™ Frame Brace Kits
Summit Racing™ frame brace kits are designed to easily install and strengthen the factory frame of your classic car or truck. The benefit of stiffening the frame is improved handling and a tight predictable feel. Reinforce your chassis and create a custom pro touring style, corner carving ride with these Summit Racing™ frame brace kits. *Constructed From DOM tubing *Computer Designed, Machined, and Bent *Welding Required for most kits *Adjustable transmission crossmember for Manuals or overdrives included *Generous openings for Dual Exhaust pipe routing *Exhaust hangers provided
( 69 )
$201.99
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$1,249.99
Classic Performance 1962-67 Chevrolet Nova Front Subframe Kits
Classic Performance 1962-67 Chevrolet Nova front subframe kits are one of the most beneficial upgrades available for your first generation Nova. By eliminating the factory strut rods and adding adjustable forward control arms, they add stability, align-ability, improved steering response, and over 2 in. of additional ground clearance. They can accommodate both factory and aftermarket sway bars with up to 1 in. diameters and feature a unique 1-piece crossmember that ties both frame rails together by bolting in where the factory strut rod mounts were located. No cutting or welding required, the installation is all bolt-in. Kits include: * 2 one-piece, 1 1/4 in., 0.120 wall DOM tubular lower control arms with Classic Performance premium ball joints * Bolt-in, 1/4 in. thick steel crossmember * Four alignment cam kits * Grade 8 mounting hardware * Low-friction, long-life bushings * Optional upper control arm bushings
( 15 )
$838.99
UMI Performance Front Reinforcement Braces
UMI Performance front reinforcement braces reduce squeaks and rattles common with the GM G-body platform. This welded steel tubing will stiffen the front frame horns and front crossmember area, and no drilling is required for installation. Grade 8 hardware is included to easily bolt the triangular brace onto your chassis. UMI front reinforcement braces are designed and manufactured with pride, and are available in your choice of powdercoat colors.
( 12 )
$299.99
UMI Performance Adjustable Strut Tower Braces
Bolster your street machine with UMI Performance adjustable strut tower braces. Easy to install, these braces offer an inexpensive modification with big benefits. Connecting the front strut towers makes your chassis stronger and fortifies your suspension. You'll feel the improved handling and quicker response in and out of corners. Plus, you'll be able to tweak the braces for a custom fit for your ride. Manufactured in the USA, UMI adjustable braces are crafted from mild steel tubing with CNC-machined 3/16 in. thick mounting plates and 4130 chromoly tube adapters and heavy-duty rod eyes. Strengthen your chassis for improved performance with UMI Performance adjustable strut tower braces.
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$159.99
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$239.99
UMI Performance Tubular Front Steering Braces
UMI Performance tubular front steering braces, also known as the Wonder Bars, are designed to tie the front right and left subframes together. UMI Performance tubular front steering braces bolt directly under the front sway bar, stiffening the front frame and resulting in improved handling, cornering, and overall performance. The steering braces strengthen the chassis, taking stress from the steering box area, which is well known as a weak area on any third-generation F-body. The steering braces are constructed from 0.250 in. 1018 mild steel CNC-machined mounting points and 1.250 in. DOM steel tubing with a 0.120 in. wall that is fully MIG-welded for extreme strength and lasting performance.
( 38 )
$99.99
UMI Performance Shock Tower Braces
UMI Performance shock tower braces make a great beginning for modifying your favorite ride. These braces positively connect your front right and left shock towers together for firmer handling and improved steering response. Constructed in the USA, UMI shock tower braces are available in DOM mild steel tubing with CNC-machined mounting plates. Or, if you're worried about adding front end weight, choose UMI's just as strong but lighter weight 4130 chromoly steel tubing braces. Both choices are given a brilliant and durable powdercoat finish in several colors. Beef up your chassis and get ready to hit the winding roads with UMI Performance shock tower braces.
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$159.99
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$199.99
QA1 Steering Brace Wonder Bar
The 3rd Gen Camaro and Firebird are known for having a weak and flexible steering box area. To address flex and improve handling, a steering brace, also known as the Wonder Bar from QA1, is available. These tubular components bolt directly above the front sway bar, tying the front subframes together. Installing a QA1 Wonder Bar helps stiffen the front frame, reducing stress on this weak point. This translates to improved steering response to your vehicle with benefits like sharper handling, improved cornering, and overall better vehicle performance. Features and benefits: * Tubular construction strengthens the front chassis * Thoughtful design—the QA1 Wonder Bar installs cleanly between the sway bar and frame rails, maintaining a factory appearance without compromising ground clearance * Bolt-in installation makes the upgrade hassle-free Fitment Notes: Please be aware that 1982-1984 cars may need to slot existing mounting holes.
Not Yet Reviewed
$104.95
BMR Shock Tower Braces
BMR Suspension shock tower braces put a bite in your traction! By tying the shock mounts together, you strengthen the front subframe assembly and minimize tower deflection for less flex and body roll. These steel braces do just that. They're made strong from hefty tubing to ensure zero deflection under load. With their easy installation, BMR shock tower braces are impressive improvements that give you the edge you need while driving.
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$99.95
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$199.95
Detroit Speed Strut Tower Braces
Detroit Speed strut tower braces are made from quality steel and utilize a unique closed triangle shape design to reinforce the front sub-structure and strut towers. Connecting the front strut towers will improve overall vehicle stiffness and increase handling and performance. These braces can be installed with simple hand tools; no welding is required. The strut tower brace and double plates are powdercoated satin black, and the kit comes with all required mounting hardware for a direct bolt-on installation. Order the brackets designed for your vehicle.
Not Yet Reviewed
$314.95
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
BMR Strut Tower Braces
Most stock chassis flex dramatically, even with mild amounts of torque and horsepower. BMR suspension strut tower braces reduce chassis flex and increase handling and performance. They are manufactured from a mix of large diameter DOM steel tubing and thick laser-cut steel plate. Depending on the application, they are available in two-point and four-point designs that solidly link the front strut towers, adding strength to the entire front unibody and suspension. Most are available in black hammertone and red powdercoat finishes for long-lasting good looks. BMR strut tower braces are 100 percent bolt-in. This means they can be easily installed with simple hand tools, and no welding is required. Installation time is typically less than an hour. When performance is a must, rely on BMR Suspension!
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$169.95
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$429.95
OER Authorized V8 Engine Crossmembers
When converting from a 6-cylinder engine to a V8, extra crossmembers are a must. OER Authorized has designed these heavy-duty steel engine crossmembers to mount and support a V8 engine in early model hot rods or trucks. The 3-piece sets mount between the frame rails for a perfect fit. Order the model recommended to fit your application.
( 1 )
$92.99
BMR Torque Arm Relocation Kits
BMR torque arm relocation kits allow you to move the torque arm mount to reduce the stress on the tailshaft. These kits replace your transmission crossmember with a stronger tubular piece that also has an integrated torque arm mount. The mount itself is adjustable up and down to allow for easy "instant center" adjustment. They are made from heavy-wall DOM tubing and 1/4 in. mounting plates and hardware are also included.
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$259.95
Whiteline Strut Tower Braces
Sometimes your vehicle's performance can begin to feel loose, or tired, as the miles go up. Whiteline strut tower braces will stiffen up your ride like it was in its teens again. They prevent slackness in steering performance by strengthening the towers. This gives the chassis less flex and twist, providing a nice stiff frame for improved handling, no matter the type of driving. Keep your chassis tight with Whiteline strut tower braces, designed to firm up suspension and handling for any driving style.
( 14 )
$238.88
Chevrolet Performance Strut Tower Braces
Take your vehicle's cornering ability to another level with Chevrolet Performance strut tower braces. They are manufactured from lightweight aluminum and are designed to add chassis stiffness and a more-direct steering response by connecting the two front strut towers together.
( 11 )
$185.99
BMR Chassis Steering Braces
BMR steel chassis steering braces are designed to tighten the front subframe assembly of your Camaro or Firebird and strengthen the steering box mounting area. They're an absolute must for any third generation F-body! BMR's steering braces will improve your steering response and handling. They come available in a black hammertone or red powdercoated finish.
( 2 )
$59.95
BMR K-Members
BMR Suspension K-members feature a unique tubular design that will allow you to drop the weight on your front-end by more than half of the factory piece. They provide a lightweight alternative, while offering larger tubing for durability. BMR K-members also provide more clearance for aftermarket headers and turbo systems. They will work with stock or aftermarket A-arms (except where noted), providing an additional 1/4 in. adjustment, equaling up to 4 more degrees of camber.
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$549.95
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$679.95
BMR Xtreme Shock Tower Braces
By tying the shock mounts together, you strengthen the front subframe assembly and minimize tower deflection for less flex and body roll. BMR's steel shock tower braces do just that. Made strong from hefty tubing to ensure zero deflection under load, they are the strongest braces available. With their easy installation, BMR Xtreme shock tower braces are impressive improvements that give you the edge you need while driving.
( 4 )
$309.95
Roadster Shop 1964-67 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 1964-67 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
