BUICK CENTURY Chassis Components Chassis & Suspension

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.

4.69 out of 5 stars ( 597 )

$333.99

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$461.99

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.

3.76 out of 5 stars ( 113 )

$311.99

Summit Racing™ Lightweight Transmission Crossmembers

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.

4.86 out of 5 stars ( 14 )

$314.99

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$317.99

Hellwig Frame FX Kits

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.

4.52 out of 5 stars ( 21 )

$814.99

Allstar Performance Frame Repair Plates

Allstar Performance frame repair plates support your metric GM car and truck chassis. If your vehicle's framework is cracked, bent, or sagging, these repair plates will help you eliminate the frame flex on your restoration or repair.

5.0 out of 5 stars ( 1 )

$29.99

Manufacturer Rebate

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

$193.95

PEM Racing Trailing Arm Brackets

PEM Racing offers trailing arm brackets for a variety of applications, including many Buick, Chevrolet, GMC, Oldsmobile, and Pontiac cars and trucks. Fabricated from steel for a 3 in. tubing diameter, the brackets are available in weld-on or bolt-on models. These trailing arm suspension parts mount the trailing arm to the vehicle's frame or axle. They typically include mounting points for the trailing arm, shock absorbers, and sometimes springs. Trailing arm suspensions are often found in rear suspension systems, and the bracket helps to control the movement and location of the trailing arm.

Not Yet Reviewed

$124.99

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$152.99

American Powertrain X-Factor Crossmembers

American Powertrain X-Factor crossmembers offer half the weight of traditional crossmembers—with all of the strength. Designed to fit with most muscle car platforms and the latest transmissions, X-Factor aluminum crossmembers are 1,000 hp strong and feature a powdercoat finish for added durability. They're available for a variety of vehicle and transmission applications.

3.7 out of 5 stars ( 33 )

$356.99

Summit Racing™ Body Frame Rail Braces

Summit Racing™ body frame rail braces improve chassis rigidity, reduce steering gear movement, and provide crisper handling. With modern high-grip tires, improved suspension, and big power, today's muscle car chassis need more help than ever. These braces feature precision laser-cut brackets with strong tubing to reinforce the front frame sway bar mounting area. The direct bolt-in braces include hardware, so no cutting or welding is required. Choose the Summit Racing™ body frame rails for your application needs.

Not Yet Reviewed

$129.99