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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.
( 585 )
$265.99
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$458.99
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.
( 43 )
$399.99
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$535.99
The 1967-69 F-body was designed in an era when high performance driving and modern tire technology weren't as prevalent. Their unibody chassis, while innovative at the time, can flex and twist under stress, particularly when cornering aggressively or accelerating hard. QA1's bolt-on subframe connectors offer a simple and effective solution to this common issue. They tackle the flex issue by increasing frame rigidity, leading to a significant improvement in handling performance—especially during cornering, acceleration, and braking. The tubular design connects the front Camaro/Firebird subframe to the rear subframe, providing additional structural support and stiffness to the chassis. Additional details: * Included solid body mounts and hardware further reduce chassis flex. Their aluminum construction offers a noise-free alternative to polyurethane. * Thoughtful design: The QA1 subframe connector contours to follow the body lines for a factory-like look without sacrificing ground clearance. * Easy bolt-in installation makes the upgrade hassle-free. * Fitment notes: Does not fit convertibles.
( 1 )
$509.95
Stifflers Suspension transmission crossmembers are engineered to deliver quality, fit, finish, and functionality. At the core of these kits are Stifflers' unique single-tube crossmembers—adding strength and stiffness beyond that of OEM versions, while offering versatility without the excess weight. They also allow more exhaust clearance. To install, simply slide the mounting sleeves and reposition the spacers to cover your application. They work with OEM and aftermarket transmission mounts, and will maintain your current pinion angle. Stifflers Suspension transmission crossmembers include low-deflection polyurethane bushings in the mounts to dampen driveline vibrations and noise, but for racing applications they can be replaced by optional solid bushings. Order the crossmembers designed for fitment on your make and model.
( 73 )
$299.95
On Sale
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.
( 42 )
$349.95
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$449.95
Rust Buster fuel tank crossmembers are designed as a frame repair component, strategically sized to install in place of the factory fuel tank crossmember to provide essential reinforcement to your vehicle's frame. This repair section is designed to seamlessly integrate into your vehicle's frame, while enhancing its overall structural integrity. The fuel tank crossmembers are constructed from premium thick steel, providing exceptional strength and resilience. The bare finish not only showcases its robustness but also allows for customization to suit your aesthetic preferences. The installation process is straightforward with its cut-out and weld-in installation type. To safeguard against rust and corrosion during shipping, this replacement part comes with a rust-preventative oil coating. Order the fuel tank crossmember designed for your application.
Not Yet Reviewed
$269.99
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$499.99
BMR subframe connectors are some of the strongest in the industry. Their innovative design ties together key structural points across the floorpan, minimizing flex. BMR subframe connectors are fabricated from heavy-duty, rectangular tubing for frame rigidity and improved handling ability.
( 65 )
$319.95
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$519.95
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.
( 29 )
$269.99
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$429.99
UMI Performance boxed weld-in subframe connectors are necessary chassis upgrades when racing and hard driving habits are present. UMI Performance boxed weld-in subframe connectors greatly improve your car's handling ability, while reducing T-top squeaks, dash rattles, and quarter-panel flexing. Subframe connectors essentially tie the front and rear steel subframes together, resulting in a stiffened and strengthened chassis, allowing for better weight transfer and improved traction when launching. When strength is a concern, square tubing has greater torsion resistance over tubular designs. They will work with all aftermarket exhaust systems and will not affect ground clearance. Their weld-in style requires no bolts to tighten and offer less chance of flex when compared with bolt-in types.
( 23 )
$399.99
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$449.99
Dorman offers spare tire crossmembers for a variety of applications, including many Chevy and GMC vehicles from 2001 and up. These OE replacements can be swapped in for original parts that are damaged by corrosion or impact. Machined from steel for reliable, long-lasting service, the crossmembers match factory dimensions for an accurate and true frame repair. Each part has undergone vehicle try-on, material, and corrosion testing to ensure proper fit and performance.
Not Yet Reviewed
$263.99
On Sale
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
( 27 )
$418.95
$263.95
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$449.95
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.
( 97 )
$350.75
Dorman subframe crossmembers replace original equipment parts damaged by corrosion or impact. Made of durable steel for a reliable, long-lasting repair, these parts match the factory dimensions for an accurate and true frame repair. Select the crossmember designed for your vehicle. Benefits: * Ideal replacement -- a direct replacement for the original crossmember * Dimensionally precise -- Matches the original part dimensions for an accurate and true repair * Quality tested -- undergoes vehicle try-on, material, and corrosion testing to ensure proper fit and long-lasting durability
( 2 )
$365.99
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.
( 11 )
$294.21
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$297.18
Strengthen your transmission support and reduce the weight of your vehicle with Summit Racing™ lightweight transmission crossmembers. Through advanced design and manufacturing, these crossmembers are stronger than standard boxed-steel transmission crossmembers, while weighing an average of 35-percent less. The crossmembers are a direct bolt-in and do not require any additional brackets or adapters to complete the installation. They also allow you to run a true dual-exhaust system with most popular GM transmissions and do not affect ground clearance. The welded design with clear powdercoat finish gives these lightweight crossmembers a fabricated look that's sure to complement your ride. Order the model recommended fit your application.
( 13 )
$305.99
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$436.99
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.
( 10 )
$449.95
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
( 5 )
$279.00
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$335.25
Stifflers Suspension web braces tie together their full-length subframe connectors and stiffening rails, creating the ultimate in chassis stiffening! A key component in their 1979-2004 modular FIT Systems, these individual black powdercoated steel frames provide a structurally engineered web network for additional strength and stiffness. Their installation is easy with the included Slide-2-Size mounting brackets. Stifflers Suspension web braces feature: * Slide-2-Size mounting; simply slide bracket into place and weld, for a custom fit every time * Design optimized using CAD/CAE software combined with real-world test data * Made of 1 in. x .065 in. tubing to maximize stiffness and strength while reducing weight * TIG-welded for superior strength * Considerably increased side impact safety * Works with any aftermarket square or rectangular full-length subframe connectors * Engineered for no loss of ground clearance and no need to relocate fuel or brake lines * No floors to cut or interior to remove * Pre-masked areas for welding require no removal of powdercoat before installation * Industrial-grade powdercoated for long life
( 2 )
$284.95
Reinforce your late-model Ford chassis with Steeda S550 Mustang rear IRS subframe support braces. These chromoly steel aftermarket stabilizers connect three key points on either side of the undercarriage: the rocker panel, the front mount of the rear suspension subframe, and the rear mount of the lower control arm. This adds much-needed rigidity and overall control of the vehicle. Steeda braces will limit twisting and vibrations for improved cornering, less wheel hop, and no additional noise. The stiffeners use existing holes in the chassis, and require no modifications—installation takes about an hour with regular shop tools. Leave the factory bracket in place; these subframe braces offer twice the support. Enjoy better handling and a safer ride with a pair of Steeda S550 Ford Mustang rear IRS subframe support braces.
( 11 )
$349.95
Auto Metal Direct torsion bar crossmembers feature the same metal thickness and contours as OEM--and the area holding the torsion bars will accept stock size bars, as well. These replacement panels span from side to side, offering integral support to your vehicle's chassis. The crossmembers are manufactured from durable steel and then EDP-coated for maximum protection.
( 10 )
$279.99
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$389.99
Hotchkis Sport Suspension Convertible X Brace supports will add rigidity to your vehicle's chassis by replacing the factory frame brace. As an added benefit, they also allow for the use of larger-tube exhaust systems, which will often require the removal of the factory brace anyway. These fabrication-designed braces feature extra reinforcing gussets and a laser-cut HSS logo. Get your fabrication on with an assist from Hotchkis Sport Suspension Convertible X Brace supports!
( 16 )
$299.99
Auto Metal Direct makes heavy-gauge steel rails designed to fit perfect and weld-in easily since they are superior reproductions of the factory original. Frame rails can become weakened by rust, attempts at pushing or towing, or damaged due to an accident, which can adversely affect other chassis components and make your vehicle unsafe to drive. Don't compromise your vehicle—or safety—with cheap replacement parts. For quality parts and components that you need for your classic vehicle, trust the pros at AMD.
( 3 )
$529.99
Your muscle car is only as strong as its weakest link, so it's a good thing that Global West Suspension manufactures not just parts, but solutions. These tubular export braces are your solution to chassis flex, control, and handling. Designed to work with Global West coilover kits or stock shock mounts, the hefty steel bolt-on braces replace the Ford stamped steel braces on your Mustang for quicker, safer response during high performance maneuvers. Global West tubular export braces are rigid to maintain tower integrity, and there are no rod ends to allow deflection or to work loose. Order the model recommended for your specific application.
( 7 )
$346.50
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.
( 1 )
$269.95
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$349.95
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