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GMC Chassis Components

Part Groups

Results 1 - 24 of 29

Rust Buster Frame Repair Sections

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.

4.41 out of 5 stars ( 29 )

$109.99

$269.99

On Sale

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 ( 593 )

$208.99

$213.99


$188.09

$192.59

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.

3.81 out of 5 stars ( 111 )

$129.99

$170.99

Rust Buster Fuel Tank Crossmembers

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

$249.99

$269.99

On Sale

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!

4.6 out of 5 stars ( 5 )

$226.99


$204.29

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

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

4.4 out of 5 stars ( 5 )

$279.00

On Sale

Summit Racing™ 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 ( 592 )

$208.99

$213.99


$188.09

$192.59

Dorman Fuel Tank Crossmembers

Dorman fuel tank crossmembers replace your damaged original equipment. They're made of durable steel and finished in weldable primer for a clean, reliable repair. Verify the fitment to your vehicle when ordering.

4.78 out of 5 stars ( 9 )

$156.99

$187.99

Brothers Trucks Crossmember Exhaust Brackets

Lowering your truck is cool, but when you do, where are you going to put the exhaust--under the frame? You'll run out of room, real quick. Well, Brothers Trucks has the solution in their crossmember exhaust brackets. These kits include meaty steel components--brackets, bolts, and template—that allow modification of the factory trailing arm crossmember for dual exhaust. They are ideal options if you don't want to remove the crossmember and still be able to tuck the exhaust up inside the frame, and they are the perfect solution for someone that doesn't have access to a welding machine. The provided metal template allows perfect alignment for the bolt holes and exhaust cut out. It utilizes an existing hole in the crossmember to locate the template, then insert one of the supplied bolts, clamp in place, and mark the remaining holes for drilling. For the center hole, the hole in the template is larger to allow a plasma torch to be used as a guide, but if you don't have a plasma torch other means, such as a hole saw, can still be used to cut the hole. Get more clearance for exhaust without weakening your truck's frame when utilizing Brothers Trucks crossmember brackets. Features: * Exhaust tailpipes fit through the holes in the frame for easier installation and more ground clearance when adding dual exhaust * Fits rear wheel drive trucks with trailing arm and coil spring rear suspension * Steel construction * Allows up to 3 in. dual exhaust system * Includes two pre-welded cut-out pieces, drilling template, and Grade 8 fasteners

Not Yet Reviewed

$154.95

Classic Performance Drop Center Crossmembers

Adding a decent size lift kit or lowering kit onto a truck brings certain requirements. For the latter, you'll need Classic Performance drop center crossmembers to complete the rear end. They feature a 1/4 in. laser-cut steel plate with raised center hoop for eliminating driveshaft interference on slammed trucks. These units bolt into the stock location with no cutting or welding required. Classic Performance crossmembers are designed to accommodate up to 3 in. dual exhausts; and the mounting brackets for trailing arms are welded on at the correct angle to allow for alignment to the rear housing. When planning out the parts needed to safely complete your lowered truck, remember to include Classic Performance drop center crossmembers.

4.92 out of 5 stars ( 12 )

$174.99

Rust Buster Rear Shock Crossmembers

Rust Buster's rear shock crossmembers are built to withstand the demands of the road. These rear shock crossmembers are strategically sized to install in place of the factory rear shock crossmember, providing essential reinforcement to your vehicle's suspension system. The precision of the laser-cut, bent, and welded steel construction ensures a perfect fit to seamlessly integrate into your vehicle's setup while enhancing its structural integrity. This enhancement is particularly crucial when navigating uneven terrains or carrying heavy loads, ensuring stability and longevity. To safeguard against rust and corrosion during shipping, this replacement part comes with a rust-preventative oil coating. The installation process is made simple with its cut-out and weld-in installation type. Don't compromise on safety or performance. Upgrade your vehicles suspension with rear shock crossmembers and experience the difference in stability and confidence while driving. Order the Rust Buster rear shock crossmember designed for your application needs.

Not Yet Reviewed

$269.99

Brothers Trucks Cab Mount Supports

Brothers Trucks cab mount supports are quality stamped for a precise fit and appearance. Available in models to fit either the driver or passenger side of your truck, these bracket supports are constructed with thick, OE-gauge steel to provide high-strength and then are EDP coated for corrosion protection. Replace those aging or rusty cab mounts with brand new supports. Order the model designed to fit your Chevy or GMC vehicle.

5.0 out of 5 stars ( 1 )

$182.95

Rust Buster Body Mount Brackets

Water, dirt, and salt commonly gets trapped between the body mounts and bushings, causing them to rot and rust. Rust Buster body mount brackets are designed to effectively address these common issues. The brackets are made from robust steel, each bracket is engineered for a perfect fit, precision bent and welded, and all necessary factory holes and mounting locations are integrated into the bracket design, ensuring a smooth and straightforward installation process. Rust Buster includes the necessary hardware, all you have to purchase some new bushings, weld-up the new bracket, paint it, install the new bushings, bolt the cab down and you are on the way. Order the brackets for your application needs. Product details: * Made from high-quality heavy-duty 11-gauge steel * By utilizing the latest in Scanner Solutions and CAD Software Rust Busters' engineering team is able to capture your specific model truck's frame contours down to the smallest detail * Each bracket is precision bent and welded for ease of installation and a perfect fit * Fits regular cab, access cab and double cab * Available in applications for driver or passenger side—depending on your application, brackets mount on frame near front of Cab or in front of the forward leaf spring perch * Includes two welded nuts and two bolts for body mount flange * Accepts OEM body mount bushing and flange along with most aftermarket alternatives * Parts ships with an oil protective coating to prevent oxidation during transit * Requires welding for installation

Not Yet Reviewed

$269.99

Performance Accessories Body Lift Kits

Get up to 3 in. higher than the rest of the world with one of these Performance Accessories body lift kits. The kits raise your truck's body off of its frame with reinforced nylon lift blocks (rated at 50,000 lbs. per square inch). They include such components as CNC-machined splined steering extensions (where required), bumper brackets (most applications), and zinc plated Grade 5 hardware to complete the installation.

4.35 out of 5 stars ( 37 )

$160.00

$170.00

Rough Country Body Lift Kits

Rough Country offers body lift kits for a variety of applications, including many Chevy, GMC, and Jeep models. They provide from 1 in. to 3 in. of lift and additional tire clearance, as opposed to stock height. From simple polyurethane block spacers … to all-inclusive kits with fiberglass-reinforced nylon body pucks, hardware, and accessories, these body lift components increase ground clearance while retaining the noise and vibrating canceling characteristics of factory mounts. Some kits include front and/or rear relocation brackets. Order the kit designed for your vehicle.

Not Yet Reviewed

$129.95

$249.95

Rust Buster Frame-To-Body-Mount Brackets

Rust Buster frame-to-body mount brackets provide a solution for replacing rust-prone components. These frame-to-body-mount brackets are important for isolating road noises, chassis flex, and vibrations, contributing to a smoother driving experience. Each bracket is meticulously modeled using advanced CAD design technology before production. The manufacturing process includes precision laser cutting, forming, and finish welding to ensure high-quality and durable repair sections. The EZ-fit design of this repair section simplifies installation by allowing it to be mounted onto the frame. Made from robust steel, each bracket features the necessary factory holes, and mounting points are pre-drilled to facilitate a seamless installation. Welding required to install.

5.0 out of 5 stars ( 2 )

$269.99

QA1 Tubular Braces

These tubular braces from QA1 are designed to work with GM A-body and G-body trailing arms to accurately locate the rear suspension. This creates major improvements in cornering, steering response, and traction, with less wheel-hop and more power to the ground.

4.38 out of 5 stars ( 8 )

$178.95

Rust Buster Carrier Bearing Crossmembers

If you need to replace your driveshaft carrier bearing crossmember on your 1st Generation Tundra from rot and rust or damage, these carrier bearing crossmembers by Rust Buster have you covered with an OE replacement that matches up to the original perfectly. By utilizing the latest in Scanner Solutions and CAD Software, the engineering team at Rust Buster Frameworks Repair are able to capture your specific model truck's frame contours down to the smallest detail. These carrier bearing crossmembers are made from robust 11-gauge steel, providing exceptional strength and resilience, and are precision bent and welded. Rust Buster takes a modern approach and tailors each frame section to fit your vehicle and application with the unique vision that puts fitment, installation ease, and OE compatibility to the top of their priority list. Product details: * Fits 2000-2006 Toyota Tundra * Made from high-quality 11-gauge steel * Crossmember that driveshaft carrier bearing mounts on * Precision bent and welded for perfect fit ease of installation * Fits regular cab, access cab and double cab * Fits 4WD automatic transmission only * Includes mounting hardware * Part ships raw with rust preventative oil coating

4.0 out of 5 stars ( 1 )

$239.99

Rust Buster Transmission Crossmembers

Transmission crossmembers help to distribute and maintain the forces and torque that result from the output of the engine and transmission. As time passes, ageing, exposure to the elements, etc., corrosion can set in creating a dangerous situation. Luckily, with a combined 45 years of experience, the Rust Buster engineering staff have a solution. Their transmission crossmembers will help to maintain your truck or SUV's structural integrity and keep it powering through the roads for years to come. By utilizing the latest in scanner solutions and CAD software, Rust Buster transmission crossmembers are designed and built, capturing all the correct contours and guaranteeing a perfect fit and an easier installation on your vehicle. Put an end to your rust issues with Rust Buster. Select the crossmember designed for your vehicle. Features: * Made from heavy-duty 11-gauge steel * Protective oil coating prevents oxidation during shipping * Back by a Lifetime Warranty * Transmission support plate (where applicable) * Welding required (where applicable) * OEM hole locations * Class 10.9 hardware (where applicable)

Not Yet Reviewed

$199.99

$229.99

Dorman Transmission Crossmembers

Dorman transmission crossmembers are high-quality replacements for your rusted or damaged original support crossmembers. These direct-fit replacements install in place of the original frame member to secure the transmission in its place to retain the existing frame, restoring performance to keep your vehicle on the road. Made from quality material, Dorman crossmembers are sized to specific applications to ensure proper fit and function. When it comes to servicing your vehicle, don't risk installing parts that may or may not work. Choose Dorman transmission crossmembers.

4.2 out of 5 stars ( 5 )

$204.99

Rough Country Kicker Bars

Give weak front-ends the boot with Rough Country Kicker Bars. Designed to work with Rough Country's suspension lifts, these reinforcement braces are fabricated from steel to help increase your vehicle's off-road stability, and are highly recommended by Rough Country for aggressive off-road use. Select the Kicker Bar kit designed for your truck.

Not Yet Reviewed

$109.95

$129.95

Aldan American Shock Braces

Add additional support and chassis reinforcement to your vehicle's suspension with Aldan American shock braces. These shock and struct tower braces are made from the highest quality materials and finishes. These components help reduce chassis flex, and when combined with adjustable shocks or coilovers add a new level of suspension control.

Not Yet Reviewed

$157.95

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.

4.0 out of 5 stars ( 2 )

$149.99

$239.99

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