QA1 now offers bolt-in rear coil-over shocks for 1963-1965 Buick Rivieras. Single adjustable shocks provide 18 positions of simultaneous rebound and compression adjustment while QA1's double adjustable shocks provide 18 positions of compression adjustment and 18 positions of rebound adjustment, for a total of 324 possible valving combinations. These shocks also utilize a fully threaded body allowing for ride height adjustability. With our highly popular adjustable struts and the addition of the rear coil-over shocks, you can now get a complete suspension makeover for both ends of the vehicle. These lightweight billet aluminum coil-over shocks are made in the USA and offer easy, bolt-in installation and ride height adjustability. They are 100% dyno tested and serialized and serviceable and rebuildable by QA1 authorized service centers. Used in drag racing, street performance, autocross, road racing and street rod applications.

• Ultimate balance of ride quality and performance handling with adjustable rebound and compression valving.
• Achieve 1/2 higher than stock down to 2.25" lower than stock.
• Limited Lifetime Warranty for peace of mind.
• Proudly made in the USA.
• Sold as a pair.

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Want better handling for your 1978-1988 GM G-Body vehicle? Turn to QA1's handling suspension kits for the best ride that fits your needs. Available in three different levels of performance, these handling kits offers easy, bolt-in installation and seamlessly works with whatever OE component each piece attaches to. Don't want to make the investment right away? No problem. You can build your car in stages, using our parts list as a road map to get to the level of performance you want and have the peace of mind knowing you won't have compatibility issues. These kits include spring rates carefully selected to maximize performance while maintaining a smooth, comfortable ride. They are geared towards average weight small block and LS powered vehicles with stock trim. Our level three handling kits offer stiffer springs to maximize cornering performance. What if the vehicle has been heavily modified from its original weight? No problem. These kits are also offered without shocks to give you the flexibility to order the shocks with the spring rates you want. .

• 3 levels of kits to choose from for better launch, straight-line stability & consistent performance
• Carefully curated for maximum performance
• Ultimate ride height and shock tunability
• Strong, lightweight tubular components
• Best-in-class warranty
• Build in stages
• Made in the USA

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These QA1 GM Pro Coil Systems are a great option for anyone looking for fully adjustable ride height and valving control. Choose a spring rate and adjustability that fits your driving style, adjust the valving to match and you are on your way. These shocks also utilize a fully threaded body that allows you to adjust your ride height for the perfect stance or to finely tune the weight balance for superior handling. Specially designed for QA1's Pro Coil Systems, the American-made lightweight high travel springs have fewer coils and a smaller wire diameter, resulting in increased travel due to the larger distance between the coils. They reduce unsprung weight and react faster, optimizing suspension performance. Multiple spring rate options are also available and have been successfully tested in various applications, from casual street driving to hard core race applications. Adjustable Pro Coil System Features: Available in independent compression and rebound double adjustable, simultaneous compression and rebound adjustable, or drag "R" Series adjustable, Lightweight Billet Aluminum Coil-Over Shocks, High Travel Springs, Easy, Bolt-In Installation, Ride Height Adjustable, 100% Dyno Tested and Serialized, Serviceable and Rebuildable by QA1 Authorized Service Centers, Made in the USA, Used in drag racing, street performance, autocross, road racing and street rod applications, Sold in Pairs, Non-Adjustable Pro Coil System Features: Steel, Stock Appearing Coil-Over Shocks, High Travel Springs, Easy, Bolt-In Installation, Ride Height Adjustable, Used in drag racing, street performance, autocross, road racing and street rod applications, Sold in Pairs

• QA1 uniquely engineered to enhance the performance of your vehicle
• Adjustable shock valving options for all driving styles
• Ride height adjustability
• Best-in-class warranty
• Easy bolt-in install
• Made in the USA

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Fit up to 28" wheels on your Caprice or Impala with a complete bolt-in suspension system, including control arms and sway bars. It has everything you need to get your Donk sitting right while giving you a better ride and improved handling.Double-Adjustable Coil-OversAdjustable coil-overs allow you dial in the exact look you want in minutes. Easily raise or lower your car up to 2" in the front, and set a custom rear ride height anywhere from stock height to up to 5" of drop. No more spacers or on-again, off-again installs. The included aluminum spanner wrenches allow you to set the exact squat you want with the full kit installed on your car. Double adjustable shocks allow independent tuning of your shock compression and rebound valving to get the perfect ride or get more grip off the line for drag racing.Adjustable Upper and Lower Trailing ArmsGet your wheel and tire package to fit with adjustable trailing arms that center your rear axle in the wheel well. This gives you more clearance for up to 28" wheels.Tubular Control ArmsUpgrade your front-end geometry for better drivability. These arms are designed specifically for big wheel cars with corrected suspension angles for large wheels and tires. They much are lighter and stronger than stock to get the most out of your car.Tubular Sway BarsReduce body roll and improve stability with front and rear sway bars. They help reduce handling issues that come from big wheels and raised ride heights. Easy, Bolt-In InstallationParts come powder coated and ready to install with all necessary hardware. You can bolt up the kit right in your garage or work with your local shop.Fitment NotesKits work with factory housings or Quick Performance 9" rear axles

• Everything you need to get your big wheel car sitting right
• Adjustable trailing arms to center wheels in the well
• On-the-car shock adjustments
• Easy bolt-in installation
• Adjustable ride height
• Best-in-class warranty
• Tubular control arms
• Made in the USA

Level 1 Big Wheel Kit. For use with 91-96 GM B-Body. Shocks on all four corners.

• Everything you need to get your big wheel car sitting right
• Adjustable trailing arms to center wheels in the well
• On-the-car shock adjustments
• Easy bolt-in installation
• Adjustable ride height
• Best-in-class warranty
• Tubular control arms
• Made in the USA

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Level 1 Big Wheel Kit. For use with 77-90 GM B-Body. Shocks on all four corners.

• Everything you need to get your big wheel car sitting right
• Adjustable trailing arms to center wheels in the well
• On-the-car shock adjustments
• Easy bolt-in installation
• Adjustable ride height
• Best-in-class warranty
• Tubular control arms
• Made in the USA

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GREAT APPEARANCEQA1’s chrome coil springs offer a clean, polished look for your suspension setup. These springs are available in a variety of lengths and rates to suit your build and are designed for use with coil-over shocks. Perfect for hot rods, street rods, and classic builds where style matters as much as performance.DESIGNED FOR QA1 MUSTANG II COIL-OVER SYSTEMSWith an upper 3.5" inside diameter and lower 2.5" inside diameter, these tapered chrome coil springs are built to fit QA1 Mustang II coil-over conversion systems.LIFETIME GUARANTEEAll QA1 springs are lifetime guaranteed to remain within 2% of the original free height and rate under normal operating conditions, giving you long-term confidence in your suspension performance.

• Designed to be as light as possible with maximum travel and superb performance
• Lifetime guarantee to remain within 2% of their original free height
• High luster chrome finish offers the ultimate appearance

PRP's Seat Adapter Mount for Jeep Wrangler JK and JKU Front gives you an easy way to install your PRP seats in your Jeep Wrangler JK. Adapter Mounts simply bolt on to your stock pedastal and slider keeping most of your seat's stock function. *These mounts do not integrate with the stock seat belts, made for use with 4pt or 5pt harnesses.

• EZ-Install - Pre-drilled to fit all standard width PRP suspension seats

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The PowerStop Z23 Evolution Sport ceramic brake pads are designed as an upgrade over stock brakes to reduce brake dust & eliminate noise, so you can ride in comfort. These brake pads are made with a low-dust ceramic formula, infused with carbon-fiber for increased braking power without sacrificing everyday drivability. The necessary stainless-steel hardware along with ceramic brake lubricant is included with the Z23 brake pads making it easier to complete your brake job. Use Z23 Evolution Sport brake pads to give your daily-driver the stopping power it deserves.

• Carbon-fiber ceramic formula for increased braking power without sacrificing everyday drivability
• Includes Premium stainless-steel hardware and ceramic brake lubricant for easy installation
• Powder coated backing plate resists rust and corrosion to provide extended pad life
• Multi-Layer rubberized shims provide virtually noise-free braking
• Low dust formulation verified in 3rd party on-vehicle testing
• Positive mold technology for consistent wear and performance
• Chamfered and slotted to ensure noise free braking
• Thermal scorched pad surface for a fast break-in

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PowerStop has a reputation for precision and adherence to the strictest OEM standards, which extends to our brake shoe line. The Autospecialty brake shoes are made with a semi-metallic formula that is post cured for increased braking power and a shorter break-in time. These shoes are precision cam ground for proper fitment to the drum and chamfered to prevent noise and chatter. Hardware is included with the Autospecialty brake shoes making it easier to complete your brake job. All shoes are 100% asbestos-free, copper-free and made from new steel that is coated to resist rust.

• Semi-metallic formula that is post cured for increased braking power and shorter break-in time
• Made from 100% new steel that is coated to resist rust
• Precision cam ground for proper fitment to the drum
• Includes premium hardware kit for easy installation
• Chamfered to prevent noise and chatter
• 100% Asbestos-Free and Copper-Free

PowerStop has a reputation for precision and adherence to the strictest OEM standards, which extends to our brake shoe line. The Autospecialty brake shoes are made with a semi-metallic formula that is post cured for increased braking power and a shorter break-in time. These shoes are precision cam ground for proper fitment to the drum and chamfered to prevent noise and chatter. Hardware is included with the Autospecialty brake shoes making it easier to complete your brake job. All shoes are 100% asbestos-free, copper-free and made from new steel that is coated to resist rust.

• Semi-metallic formula that is post cured for increased braking power and shorter break-in time
• Made from 100% new steel that is coated to resist rust
• Precision cam ground for proper fitment to the drum
• Includes premium hardware kit for easy installation
• Chamfered to prevent noise and chatter
• 100% Asbestos-Free and Copper-Free

PowerStop Powder Coated Brake Calipers are made specifically with the enthusiast in mind. These calipers (sold as pairs) bolt directly in place of the original stock calipers and look great behind any set of wheels. PowerStop Brake Calipers are engineered to provide the best performance and reliability, and are coated with a durable electrostatic high-temperature red powder coat. The easy-to-clean coating provides resistance to rust and corrosion thus extending the life of your calipers. PowerStop calipers are 100% pressure tested and inspected to verify piston operation to guarantee a reliable, high quality brake performance. Expertly assembled with everything needed for a brake upgrade using new seals, caliper slide pins/bolts, dust boots, bleeder screws, and stainless-steel pad attachment hardware. High temperature EPDM rubber dust boots and premium lubricants ensure a smooth caliper operation and durability in the harshest conditions. PowerStop Powder Coated Brake Calipers are finished in a high-temp powder coating and designed to enhance both the performance and custom look of your vehicle!

• New seals, caliper guide pins, dust boots, bleeder screws, stainless steel brake pad attachment hardware and mounting brackets.
• Premium lubricant is used to ensure a smooth caliper operation and durability in the harshest conditions.
• Easy to clean powder coating helps to resist rust and corrosion and extends the life of calipers.
• 100% Pressure tested and inspected for high quality brake performance.
• High-Temp red powder coating keeps calipers looking new longer
• Bolt on ready, no modifications necessary
• High-Temp EPDM rubber dust boots

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PowerStop Powder Coated Brake Calipers are made specifically with the enthusiast in mind. These calipers (sold as pairs) bolt directly in place of the original stock calipers and look great behind any set of wheels. PowerStop Brake Calipers are engineered to provide the best performance and reliability, and are coated with a durable electrostatic high-temperature red powder coat. The easy-to-clean coating provides resistance to rust and corrosion thus extending the life of your calipers. PowerStop calipers are 100% pressure tested and inspected to verify piston operation to guarantee a reliable, high quality brake performance. Expertly assembled with everything needed for a brake upgrade using new seals, caliper slide pins/bolts, dust boots, bleeder screws, and stainless-steel pad attachment hardware. High temperature EPDM rubber dust boots and premium lubricants ensure a smooth caliper operation and durability in the harshest conditions. PowerStop Powder Coated Brake Calipers are finished in a high-temp powder coating and designed to enhance both the performance and custom look of your vehicle!

• New seals, caliper guide pins, dust boots, bleeder screws, stainless steel brake pad attachment hardware and mounting brackets.
• Premium lubricant is used to ensure a smooth caliper operation and durability in the harshest conditions.
• Easy to clean powder coating helps to resist rust and corrosion and extends the life of calipers.
• 100% Pressure tested and inspected for high quality brake performance.
• High-Temp red powder coating keeps calipers looking new longer
• Bolt on ready, no modifications necessary
• High-Temp EPDM rubber dust boots

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