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Chassis Components - Frame Brace, K-Members & More
Showing In Stock Items. Show All 47 Items.
On Sale
Hooker LS Engine Swap Transmission Crossmembers
Hooker LS engine swap transmission crossmembers are built to mount the transmission in place when switching to an LS engine. They are designed using CAD modeling/FEA analysis for optimal fitment, strength, weight, safety, and appearance. The crossmembers are manufactured from high-strength, low-alloy steel and then black powdercoated for maximum durability. They provide an engineered 3 to 3.5 degree engine/transmission inclination angle that is critical to obtaining suitable U-joint working angles. They are designed to be used in conjunction with Hooker LS engine swap brackets to provide a bolt-in installation of Hooker LS swap manifolds, headers, and exhaust systems for this application.
( 43 )
$399.95
$225.45
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$460.95
Doug's Headers Engine Swap Transmission Crossmembers
Doug's Headers offers engine swap transmission crossmembers for a variety of classic Chevrolet and GMC applications. They are CAD-CAM designed, welded steel with a durable black powdercoat finish for proper fit, strength, and appearance. Ideal for 2WD trucks with GM LS and LT engines, one part number fits with ALL popular late-model manual and automatic transmission swaps. The crossmembers come complete with necessary hardware and detailed instructions. Notes: * Designed to clear up to 3 in. exhaust systems with no loss of ground clearance * Designed for use with Doug's Headers line of LS engine swap products
( 6 )
$279.00
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$335.25
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 )
$699.99
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$1,566.96
Hooker Super Competition Engine Swap Transmission Mount Kits
Hooker Super Competition engine swap transmission mount kits are available for Chevy, Chrysler, and Ford small block and big block engines. These strong mounts are designed from steel and are engineered to provide you with an exact fit and a simple installation. Hooker Super Competition engine swap mount kits are the mounts of choice when matched with the appropriate engine swap.
( 11 )
$460.95
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 )
$379.95
$168.80
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$460.95
On Sale
Hooker Transmission Crossmember Extension Brackets
Get your LS engine installed properly using one of these Hooker transmission crossmember extension brackets. They are manufactured from quality materials and bolt in place for an easy installation. The brackets are available for different types of transmissions, so they're sure to have you covered.
( 4 )
$46.49
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$82.99
Trans-Dapt Performance Crossmembers
Trans-Dapt Performance crossmembers eliminate the need to fabricate a rear crossmember. Their vehicle-specific transmission crossmembers are available as kits, with braces and mounting pads, or as the crossmember alone. Position your engine and transmission properly and exactly where you need them with quality, durable crossmembers from Trans-Dapt.
( 113 )
$82.99
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$311.99
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
Allstar Performance Oil Filter Adapters
Allstar Performance oil filter adapters are stock replacements designed to fit your engine block and accept an oil filter. These adapters are made with high-quality materials to create a durable product that you can depend on for years to come.
( 118 )
$7.99
QA1 Mustang K-Members
Replace your heavy stock K-member with one of these tubular QA1 Mustang K-members and, in addition to the weight savings, you'll get better steering geometry, less bump steer, reduced dive under braking, and quicker straight-line performance. Ideal for street performance, autocross, pro touring or drag racing, they easily bolt onto factory components without any wheel or tire fitment changes. Features and benefits include: * All mounting points are digitally-indexed from new factory K-members * Made from high-quality, American-made, high-strength, low-alloy steel (HSLA) steel * Weighs only 25 lbs.--over 50 percent lighter than stock K-members * Increased header and oil pan clearance for easier maintenance and installation * Modular design for versatility--bolt-in engine mounts can easily be swapped for future engine changes * Improved geometry--maintains optimum anti-dive and minimizes bump steer with selectable rack height and optimal control arm positioning * Ideal for Mustangs with a lowered stance * Retain the factory wheel base Note: For best results, QA1 control arms are strongly recommended
( 31 )
$593.95
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
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.
( 25 )
$519.95
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$689.95
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!
( 168 )
$169.95
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$429.95
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
Hooker Transmission Crossmember Spacers
Hooker transmission crossmember spacers are designed as part of a fully-engineered LS swap mounting system—and for compatibility with an aftermarket polyurethane transmission mount or stock replacement rubber mount of equivalent installed height. Machined from aluminum, these spacer only kits (bolts not included) will help facilitate installation of a GM 4L60-4L70 transmission into any LS-swapped 1968-72 A-body utilizing Hooker transmission crossmembers.
( 4 )
$46.49
Hooker Blackheart Transmission Crossmember Spacers
Hooker Blackheart transmission crossmember spacers have been comprehensively designed for use with Hooker Blackheart transmission crossmembers used in specific GM LS engine or Ford Coyote engine swap applications. When used as instructed, these transmission mount adapters will provide engine/transmission inclination angles which are designed to provide optimized U-joint working angles and component clearances. Features include: * Allows installation of GM 4L60/4L70, Tremec TKO 500/600, or TR3550 transmissions in multiple engine swap applications using Hooker Blackheart engine mounting brackets and transmission crossmembers * CAD modeled to provide optimal fitment and strength * Provides powertrain inclination angles required to ensure compatibility with other Hooker Blackheart engine swap components * Includes attaching hardware
Not Yet Reviewed
$71.79
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
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
UMI Performance Road Race Tubular K-Members
UMI Performance Road Race K-Members are designed for serious racers who expose their vehicles to more stress than any street cars will ever experience. Using an additional 1.000 in. of tubing, UMI Performance Road Race K-Members tie together crucial areas. They weigh in at 3 lbs., more than UMI's standard version, but still maintain a much-needed weight savings.
( 3 )
$819.99
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$999.99
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.
( 44 )
$359.99
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$516.99
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.
( 52 )
$159.99
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$199.99
GForce Differential Carrier Brackets
GForce differential carrier brackets utilize large poly bushings in a wide load-spreading design. Mounts are laser-cut and TIG-welded to eliminate some of the flex usually found in stock mounts. GForce heavy-duty mounts include bushings and hardware.
( 1 )
$289.00
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.
( 17 )
$259.95
BMR Tunnel Braces
Increase the floor and driveshaft tunnel rigidity of your vehicle with steel reinforcements from BMR Suspension. These tunnel braces are available in a variety of styles and protective finishes, and will strengthen the chassis stiffness for aggressive maneuvering, as well as steering feel and stability on the track or street. Most of the BMR tunnel braces are bolt-on style requiring no drilling or welding. Order the model designed for fitment on your ride.
( 26 )
$69.95
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$99.95
