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1981 Chassis Components

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Results 1 - 24 of 40

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 ( 590 )

$219.99

Stifflers Suspension Weld-On Subframe Connectors

Stifflers Suspension weld-on subframe connectors are engineered to be stiff, lightweight, and easy to install. These full-length connectors are manufactured from 1.5 in. x 2 in. x .083 in. rectangular tubing. They are optimized using CAD/CAE software to provide the ultimate in stiffness, reduced weight, and maximized surface area between the subframe and connector. Stifflers subframe connectors feature crimped and welded tube ends to seal out moisture, while also increasing strength, and a laser-cut cross brace that reduces free span, reinforces the floor pan, and minimizes required welding during installation. All is given an industrial-grade powdercoat for long life. Welding areas are pre-masked, so no removal of powdercoat is needed before installation--a real time-saver!

5.0 out of 5 stars ( 10 )

$189.95

Summit Racing™ Bolt-On Subframe Connectors

Say goodbye to frame twist and traction loss! If you're tearing up the track in your unibody vehicle, bolt on a pair of these Summit subframe connectors and strengthen that frame. These connectors have a tough black powdercoated finish for long service life under the harshest racing conditions. Hardware and instructions included.

3.98 out of 5 stars ( 114 )

$176.99

Summit Racing™ Cummins Conversion Crossmembers

Summit Racing™ Cummins conversion crossmembers are specifically designed for installing a Cummins 6BT into your 1973-87 Chevy 4WD truck or 1973-91 4x4 Suburban. These drop conversion units often eliminate the need for a lift kit. They're a direct bolt-in, utilizing OEM hole locations, yet still allow room for drilling and adding additional bolts for increased rigidity. The crossmembers are made from high-quality steel with a black powdercoat finish. It's a fact—any conversion can be tricky. Thankfully, Summit Racing™ offers the correct components to help you get the job done right!

4.0 out of 5 stars ( 6 )

$232.99

Stifflers Suspension Transmission Crossmembers

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.

4.62 out of 5 stars ( 76 )

$189.95

$249.95

Trans-Dapt Performance Universal Crossmember Motor Mounts

Eliminate the hassle of fabricating a crossmember and position your engine where you want with these universal crossmember motor mounts from Trans-Dapt. They'll support most small and big block engines and feature different frame rail widths for different engine applications. The crossmember motor mounts are available with or without the motor mount pads.

3.72 out of 5 stars ( 32 )

$108.99

$159.99

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.

4.5 out of 5 stars ( 32 )

$159.99

Key Parts Wheel Tubs

Key Parts wheel tubs are original equipment, factory-style body panels suited for a professional restoration project. Over the years your original wheel tubs can become rusted, dented, cracked, or scratched, especially on classic vehicles that take the most beating from rain, road salt, dirt, and debris. Key Parts offers wheel tubs that are based on original specifications and dimensions—or you can get the extended width tubs, which are 4 in. wider than stock tubs to make room for wider tires! That makes stuffing those big wheel tire combinations much easier and driver friendly. The tubs EDP coating ensures a long-lasting durable finish for transport and storage, and they are ready for standard prep work prior to installation and paint for show quality results. Repair or replace rusted wheel tub body panels with high-quality, affordable reproduction wheel tubs from Key Parts. Order the wheel tubs for your application needs.

Not Yet Reviewed

$196.99

BBK Gripp Heavy-Duty Bolt-On Subframe Connectors

BBK Gripp heavy-duty bolt-on subframe connector sets dramatically reduce unwanted chassis flex to give your vehicle better cornering capability. The connectors feature super-strong boxed steel construction, precision-stamped brackets for easy installation, and a black powdercoated finish. Hardware is included.

4.0 out of 5 stars ( 17 )

$149.99

$229.99

Auto Metal Direct Rear Frame Crossmembers

Structural integrity is vital to a vehicle chassis. Auto Metal Direct rear frame crossmembers give you alignment, handling, and strength to support heavy components. They are EDP coated steel reinforcements to replace your rusted or damaged factory originals. Correct gauge materials ensure an accurate fit and function. The rear frame area is a mounting point for suspension parts and more.

4.71 out of 5 stars ( 17 )

$108.89

Tuff Country EZ-Ride Axle Pivot Brackets

Tuff Country EZ-Ride axle pivot brackets are ideal for the Ford owner having trouble aligning a 2.5 in. to 6.0 in. lifted vehicle. These brackets, along with the camber adjustment bolts, will restore the axles to the proper geometry by dropping the driver and passenger side axles, allowing for a precise alignment. The camber bolt allows for a -2.25 to a +2.25 degree camber alignment adjustment.

3.85 out of 5 stars ( 20 )

$146.99

$198.99

AJE Suspension Transmission Crossmembers

AJE Suspension transmission crossmembers update your factory components. These tubular crossmembers are stronger, more durable, and lighter thanks to the suspension technology of Anthony Jones. The components are crafted from steel and are black powdercoated. Always innovative, AJE offers racers and enthusiasts a wide selection to accommodate your transmission choice for a perfect fit in your Mustang. Swap your stock for AJE transmission crossmembers.

4.15 out of 5 stars ( 27 )

$202.99

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

4.37 out of 5 stars ( 27 )

$285.95

$352.95


$168.80

$199.37

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

Goodmark Frame Rails

Goodmark frame rails are pre-bent to fit your specific vehicle application. They're manufactured from high-quality steel and are available with a natural finish or EDP coating. These replacements are offered in a wide range of configurations for classic cars and trucks from the 1960s, '70s, and '80s. For repair or restoration, order the model (and position) recommended to fit your vehicle.

4.29 out of 5 stars ( 7 )

$225.99

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.

4.61 out of 5 stars ( 54 )

$109.95

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

GSI Machine and Fabrication Rear Crossmembers

GSI Machine and Fabrication builds quality parts for classic Chevy trucks, offering a full line of custom and replacement parts for C10 trucks. GSI rear crossmembers are part of that line, fabricated from heavy-duty steel, laser etched with the GSI logo, and they include hardware. Choose the bolt-in crossmember fabricated for your truck's year.

Not Yet Reviewed

$124.99

Rust Buster Frame Stiffeners

Rust Buster frame stiffeners help strengthen your front or rear frame rail for both driver and passenger sides. The EZ-Slip design allows the repair section to slide onto the frame and includes all the factory required holes and mounting locations. Rust Buster uses the latest in CAD design to model each repair section before it is laser-cut, formed and finish welded. Help keep your vehicle on the road for years to come with Rust Buster products.

5.0 out of 5 stars ( 2 )

$149.99

Rust Buster Crossmember Frame Repair Sections

Rust Buster crossmember frame repair sections are made from steel for durability, and ship raw and uncoated for easier weld-on installation. These quality frame repair panel sections are meticulously designed to replace the entire crossmember to help you to get your vehicle back on the road with a renewed life, and keep it that way for years to come. Take control of your own restoration, with Rust Buster crossmember frame repair sections.

4.5 out of 5 stars ( 4 )

$179.99

$184.99

Silver Sport Transmission Support Brackets

Securing your transmission is a must. Silver Sport transmission support brackets are cut from robust steel and zinc plated. They utilize the original crossmember and are bolt-in for an easy installation.

1.0 out of 5 stars ( 1 )

$139.95

Nolathane Body Lift Kits

Nolathane body lift kits give your vehicle a boost with better bushings! These premium-quality bushing kits offer optimal safety, handling, and performance. Give your ride a lift with softer, stronger, smarter Nolathane body lift kits.

Not Yet Reviewed

$179.87

Rust Buster Spare Tire Crossmembers

Rust Buster comes in with a solution better than the Factory OEM crossmember. The spare tire crossmember is a crucial component designed to enhance the structural integrity of your vehicle's rear frame, ensuring that your spare tire is securely held in place. This repair piece serve as a faithful OE replacement, preserving the authenticity of your vehicle's design while elevating its overall structural integrity. Designed as a bolt-on part, installation is straightforward and hassle-free. Each crossmember is meticulously engineered and features mounting location holes that are slotted for optimal fitment for the perfect blend of strength and durability. For added protection against rust and corrosion, this support piece comes with a rust-preventative oil coating, ensuring your investment stands the test of time. Drive with confidence, knowing your spare tire is securely supported with the quality and precision of a spare tire crossmember by Rust Buster. Order the model for your make/model.

Not Yet Reviewed

$179.99

Competition Engineering Weld-On Subframe Connectors

If you're going racing and have a hi-po engine in your unibody car, you might end up losing traction or twisting the body. What you need is extra support, and Competition Engineering's weld-on subframe connectors give you that. Constructed of mild steel tubing, they solidly connect your car's front and rear subframes.

3.07 out of 5 stars ( 14 )

$177.99

$184.99

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