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Ridetech subframe connectors add rigidity to your vintage vehicle's chassis and improve performance by reducing chassis flex. Modern tires and aftermarket suspension components are pushing the limits of OEM chassis designs. Ridetech's subframe connectors offer simple bolt-on reinforcement to significantly increase the performance of the chassis and dramatically transform the handling and ride quality. Connectors are fabricated from 1.5 in. x 3 in. x .125 wall steel for high strength, then bathed in a durable powdercoat finish for long-lasting, high-quality appearance. Order the pair recommended for your muscle car application.
( 11 )
$625.00
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$695.00
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
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$599.95
Hotchkis Sport Suspension weld-on subframe connectors strengthen the chassis of your unibody to increase cornering and straight line performance. They're engineered to provide maximum ground clearance, while reducing annoying rattles and squeaks.
( 51 )
$539.10
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$719.99
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.
( 5 )
$731.99
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.
( 23 )
$519.95
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$719.95
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 )
$510.99
One of the most effective ways to improve the stiffness and handling of your vehicle is to box the factory chassis. Hellwig Frame FX kits makes it easy for you. Rather than taking considerable time with measuring, cutting, and fitting steel panels these kits simplify the process effectively. Some vehicles have an open C-channel chassis that's only 3 in. wide at the top and bottom. This design is inherently weak in handling torsion and marginal in bending. Frame FX kits double the width of the tension side of the frame rail and close the area for dramatic increases in torsional and bending stiffness. They're comprised of 14 pre-cut 10-gauge steel panels matching the thickness of the factory frame--and fit into the weak points of the factory chassis. Hellwig engineered another panel that adds an extra mount to tie the floor to the chassis, furnishing even more strength to the entire car. In addition, brackets are provided to mount the transmission crossmember, with enough adjustment to accommodate nearly any drivetrain configuration. The increased strength via Hellwig Frame FX kits results in improved handling and ride quality, while retaining the factory chassis and mounting points.
( 20 )
$651.99
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$742.99
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
( 16 )
$699.99
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$779.99
UMI Performance bolt-on 3-point subframe connectors increase chassis stiffness, performance capabilities, and overall drivability. Their setup is designed to tie the front and rear subframes together, adding additional cross-bracing throughout the center of the vehicle and protecting it to its fullest, while keeping ground clearance issues to a minimum. This spider web effect greatly improves your car's handling ability, while reducing T-top squeaks, dash rattles, and quarter panel flexing. They are designed for autocross, road racing, and drag racing setups. Connecting the front and rear subframes together allows for better weight transfer, improved traction, and straighter launches. Additional features include: * Constructed from 1.750 in. x 0.120 in. DOM mild steel tubing * 3-point brace uses 1.250 in. x 0.095 in. DOM mild steel tubing * Front mounting points feature 0.250 in. thick mild steel mounting plates * Mounting plates feature precision CNC-machining to ensure tolerances * MIG-welded construction * Durable powdercoated finish
( 10 )
$614.23
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$659.99
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
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
$699.95
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 )
$569.95
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 )
$519.95
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$669.95
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 )
$567.95
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
Steer Smarts delivers their most extreme steering linkage--Yeti XD Series linkage equipped with their Griffin XD attenuator. They applied 85 years of steering "lessons learned" to develop the strongest most durable linkage ever built for a Jeep. Adding a top-mounted drag link to your Jeep was a daunting task, to say the least. But Steer Smarts patented reverse taper mount changed that, making the task a simple process. Steer Smarts YETI XD drag links are completely bolt-on—even the top-mount links, installing in just minutes, bolting to the factory tapered knuckle hole and the factory pitman arm hole. Steer Smarts Yeti XD drag links with Griffin XD attenuator are available in bottom-mount or "No Drill" top-mount versions with red or black bellows. Select the drag link designed for your Jeep. Features: * Yeti XD/Griffin XD assembly: -- Easy bolt-on installation -- Engineered for proper clearance with chassis components, eliminating interferences * Ball joints: -- 30mm 2 1/2-ton ball joints designed specifically for specific Jeep model -- Cold headed medium carbon alloy steel ball studs provide incredible impact toughness for extreme duty usage -- Induction heat-treated ball studs provide ultimate fatigue strength and superior off-road durability -- Steel-on-steel bearings provide exceptional ball joint wear resistance and robustness -- High-quality seals ensure long ball joint life and are rigorously tested to minimize leakage between grease service intervals, improving ball joint reliability -- Fully greaseable * Drag link ends: -- Powdercoat over e-coat for a long-lasting appearance under harsh conditions -- External threads are e-coated for durability and long term serviceability -- Forged from medium carbon high-hardened steel and heat-treated for even greater buckling, impact, and fatigue strength. -- Large 1 1/4 in. rolled threads at tie rod adjuster and drag link ends provide significantly increased strength over the original equipment threads -- Unique "reverse pin" technology built into the socket prevents linkage from flopping or rocking * Griffen XD attenuator: -- Reduces harsh and negative feedback to your steering wheel -- Drag link adjuster is manufactured from large diameter 1/4 in. thick wall high-strength 4130 chromoly steel tubing for maximum buckling strength -- Adjuster clamps ensure proper clamp force using conventional tools without the possible risk of loosening like large jam nuts -- Designed with right-hand and left-hand threads for quick and easy adjustment when installed on the vehicle -- Internal threads and tube are also e-coated for long term serviceability
Not Yet Reviewed
$699.00
Summit Racing™ offers a wide selection of high-quality bulk round tubing to assist with many fabrication projects. After all, the key to any successful car build is having access to quality, reasonably priced parts to help you get the job done right. Sold in pre-cut lengths, Summit Racing™ bulk round tubing is available in both D.O.M., mild steel, and chromoly. Choose what you need in length, diameter, and thickness to best suit your project needs.
( 3 )
$508.20
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
( 2 )
$529.95
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 )
$579.95
Artec Industries' new JK heavy-duty crossmembers are designed to give your Jeep Wrangler JK better protection beneath the vehicle than the stock unit. Designed using CAD files directly from the manufacturer, these heavy-duty reinforcements ensure that you have a great fit with factory components. Made from CNC-cut and formed 1/4 in. thick steel, the JK heavy-duty crossmembers will hold up to plenty of off-road abuse. They enable you to mount longer arms for greater stability and flex. All nuts are pressed into the brackets for easy removal and installation; the crossmembers use 2.625 in. wide joints or bushings with 9/16 in. holes; they're shipped bare so you can custom finish it however you want. Order the model recommended for your Jeep application.
Not Yet Reviewed
$571.99
Specifically designed for Toyota Tacoma trucks, the Trail-Gear Rock Defense dual T-case crossmembers provide a sturdy secure transfer case mount, while also providing superior transfer case protection while sliding across any rocks your vehicle can tackle. The Rock Defense T-case crossmembers are made from 3/8 in. thick 1010 steel, so you have confidence that your transfer case is supported and covered when you are sliding over even the nastiest rocks. These crossmember kits can be mounted either by drilling the frame and bolting the crossmember in, or simply by welding the crossmember mounting brackets to the frame and bolting the crossmember to the mounting brackets. Trail-Gear also offers single transfer case crossmember kits. Both dual case and single case crossmembers use the same mounting brackets, so that once you have your single case brackets installed, there is no need to change them when upgrading to dual cases. You simply bolt dual case crossmember into the same bracket, all that is needed is an additional T-case mount. Features and benefits: * Fits 1995-2004 Tacoma T-cases, automatic and manual transmissions, and uses your stock T-case mount(s) * Rock Defense T-case crossmember kits can be mounted either by drilling the frame and bolting the crossmember in, or simply by welding the crossmember mounting brackets to the frame and bolting the crossmember to the mounting brackets * Supplied mounting brackets are 1/4 in. thick 1010 steel and all necessary Grade 8 mounting hardware is included with top locking nuts * Both single and dual case crossmembers use the same mounting brackets, so that once you have your single case brackets installed, there is no need to change them when you upgrade to dual cases—simply bolt the dual case crossmember into the same bracket, all that is needed is an additional T-case mount (sold separately) * Crossmembers are shipped unpainted and should be painted or powdercoated before being installed
Not Yet Reviewed
$576.70
First and second generation F-bodies use a subframe that can flex during hard cornering, altering your suspension geometry and even your alignment. The problem solvers at Hotchkis offer Chassis Max handle bars as the solution. Triangular-shaped handle bars tie the control arms to each other or the cowl to the firewall with high-strength tubing, CNC-bent brackets, and laser-cut gussets (in first generation F-bodies) for maximum strength and rigidity. They are computer-designed for superior fit, fabricated from 1.5 in. steel tubing, TIG-welded for strength, and powdercoated with an anthracite finish for durability. Make the most of your high performance suspension and experience incredible handling and driver control in your street machine when you install Chassis Max handle bars from Hotchkis Sport Suspension.
( 16 )
$503.10
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
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
$662.95
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