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Auto PartsQA1 2019+ Chevrolet Silverado / GMC Sierra 1500 Single Adjustable 4/5in Lowering Kit w/ Spindles
This QA1 lowering kit is designed to drop your 2019–2026 Silverado 1500 or Sierra 1500 while improving ride quality, control, and stance. Built around QA1 single adjustable Pro-Coil front coilovers and matched rear shocks, it allows you to fine-tune ride feel with a simple turn of a knob. If you want a proven 4/5 drop that balances comfort, control, and ease of installation, this kit delivers. MODERN HANDLING AND ADJUSTABILITY Lowering a modern truck should enhance how it drives, not make it harsher or less predictable. This kit uses QA1 single adjustable shocks up front and in the rear to give you real control over ride firmness. With one adjustment, you can dial the suspension to match daily driving, highway cruising, or a more planted street feel. The result is a lowered Silverado that still drives like a truck you want to spend time behind the wheel of. ENGINEERED FOR STRENGTH AND STREET USE QA1 engineered this system specifically for the weight, suspension geometry, and real-world demands of late-model half-ton trucks. The Pro-Coil front suspension uses matched springs, shock valving, thrust bearings, and mounting hardware to deliver smooth adjustment and consistent performance. By pairing properly matched front and rear components, this kit avoids the compromises of pieced-together lowering solutions and keeps your suspension working as a complete system. BOLT-IN CONVENIENCE This lowering kit is designed as a bolt-in solution for 2019–2026 Silverado 1500 and Sierra 1500 trucks in both 2WD and 4WD configurations. No cutting or welding is required, making it a straightforward upgrade for builders who want results without unnecessary complexity. Included drop spindles help achieve the desired drop while maintaining suspension geometry, and the rear mounting hardware and shock package are designed to support a clean 3–5 inch drop. This Part Fits: Year Make Model Submodel 2019-2026 Chevrolet Silverado 1500 Custom 2019-2026 Chevrolet Silverado 1500 Custom Trail Boss 2019-2026 Chevrolet Silverado 1500 High Country 2019-2026 Chevrolet Silverado 1500 LT 2019-2026 Chevrolet Silverado 1500 LT Trail Boss 2019-2026 Chevrolet Silverado 1500 LTZ 2023-2026 Chevrolet Silverado 1500 PPV 2019-2026 Chevrolet Silverado 1500 RST 2019-2021 Chevrolet Silverado 1500 SSV 2019-2026 Chevrolet Silverado 1500 WT 2022-2026 Chevrolet Silverado 1500 ZR2 2019-2026 GMC Sierra 1500 AT4 2022-2026 GMC Sierra 1500 AT4X 2019-2021 GMC Sierra 1500 Base 2019-2026 GMC Sierra 1500 Denali 2022-2026 GMC Sierra 1500 Denali Ultimate 2019-2026 GMC Sierra 1500 Elevation 2022-2026 GMC Sierra 1500 Pro 2019-2026 GMC Sierra 1500 SLE 2019-2026 GMC Sierra 1500 SLT
SKU: QAPLK11-GMT05
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QA1 2019+ Chevrolet Silverado / GMC Sierra 1500 Double Adjustable 4/5in Lowering Kit w/ Spindles
This QA1 lowering kit is designed to deliver a clean 4/5 inch drop on your 2019–2026 Silverado 1500 or Sierra 1500 while maximizing control, traction, and adjustability. Built around QA1 double adjustable Pro-Coil front suspension and a matched double adjustable rear drop kit, it gives you full authority over ride quality and power delivery. MODERN HANDLING AND ADJUSTABILITY Lowering a modern truck is about more than looks. This kit uses QA1 double adjustable shocks up front and in the rear, allowing independent tuning of compression and rebound to match your exact driving style. Whether you want a refined street ride or a firmer, more planted setup, the adjustment range gives you the flexibility to dial in performance without compromise. ENGINEERED FOR STRENGTH, CONTROL, AND TRACTION QA1 engineered this system specifically for the weight, suspension geometry, and real-world demands of late-model half-ton trucks. The Pro-Coil front suspension and double adjustable rear drop kit are designed as a matched system to maintain balance and predictable handling at a lowered ride height. BOLT-IN CONVENIENCE This lowering kit is designed as a bolt-in upgrade for 2019–2026 Silverado 1500 and Sierra 1500 trucks in both 2WD and 4WD configurations. No cutting or welding is required, making it an ideal solution for builders who want top-tier performance without custom fabrication. Included drop spindles help achieve the desired drop while maintaining suspension geometry, and the bolt-in traction bar system integrates cleanly with the rear suspension for added control. This Part Fits: Year Make Model Submodel 2019-2026 Chevrolet Silverado 1500 Custom 2019-2026 Chevrolet Silverado 1500 Custom Trail Boss 2019-2026 Chevrolet Silverado 1500 High Country 2019-2026 Chevrolet Silverado 1500 LT 2019-2026 Chevrolet Silverado 1500 LT Trail Boss 2019-2026 Chevrolet Silverado 1500 LTZ 2023-2026 Chevrolet Silverado 1500 PPV 2019-2026 Chevrolet Silverado 1500 RST 2019-2021 Chevrolet Silverado 1500 SSV 2019-2026 Chevrolet Silverado 1500 WT 2022-2026 Chevrolet Silverado 1500 ZR2 2019-2026 GMC Sierra 1500 AT4 2022-2026 GMC Sierra 1500 AT4X 2019-2021 GMC Sierra 1500 Base 2019-2026 GMC Sierra 1500 Denali 2022-2026 GMC Sierra 1500 Denali Ultimate 2019-2026 GMC Sierra 1500 Elevation 2022-2026 GMC Sierra 1500 Pro 2019-2026 GMC Sierra 1500 SLE 2019-2026 GMC Sierra 1500 SLT
SKU: QAPLK12-GMT05
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QA1 2019+ Chevrolet Silverado 1500 Double Adjustable 4/5in Lowering Kit w/ Spindles & Traction Bars
This QA1 lowering kit is designed to deliver a clean 4/5 inch drop on your 2019–2026 Silverado 1500 or Sierra 1500 while maximizing control, traction, and adjustability. Built around QA1 double adjustable Pro Coil front suspension, a matched double adjustable rear drop kit, and integrated traction bars, it gives you full authority over ride quality and power delivery. MODERN HANDLING AND ADJUSTABILITY Lowering a modern truck is about more than looks. This kit uses QA1 double adjustable shocks up front and in the rear, allowing independent tuning of compression and rebound to match your exact driving style. Whether you want a refined street ride or a firmer, more planted setup, the adjustment range gives you the flexibility to dial in performance without compromise. ENGINEERED FOR STRENGTH, CONTROL, AND TRACTION QA1 engineered this system specifically for the weight, suspension geometry, and real world demands of late model half ton trucks. The Pro Coil front suspension and double adjustable rear drop kit are designed as a matched system to maintain balance and predictable handling at a lowered ride height. Integrated QA1 traction bars add another layer of control by reducing wheel hop and helping keep power planted during acceleration. The result is a Silverado that not only looks aggressive, but stays composed when driven hard. BOLT-IN CONVENIENCE This lowering kit is designed as a bolt in upgrade for 2019–2026 Silverado 1500 and Sierra 1500 trucks in both 2WD and 4WD configurations. No cutting or welding is required, making it an ideal solution for builders who want top tier performance without custom fabrication. Included drop spindles help achieve the desired drop while maintaining suspension geometry, and the bolt in traction bar system integrates cleanly with the rear suspension for added control. This Part Fits: Year Make Model Submodel 2019-2026 Chevrolet Silverado 1500 Custom 2019-2026 Chevrolet Silverado 1500 Custom Trail Boss 2019-2026 Chevrolet Silverado 1500 High Country 2019-2026 Chevrolet Silverado 1500 LT 2019-2026 Chevrolet Silverado 1500 LT Trail Boss 2019-2026 Chevrolet Silverado 1500 LTZ 2023-2026 Chevrolet Silverado 1500 PPV 2019-2026 Chevrolet Silverado 1500 RST 2019-2021 Chevrolet Silverado 1500 SSV 2019-2026 Chevrolet Silverado 1500 WT 2022-2026 Chevrolet Silverado 1500 ZR2 2019-2026 GMC Sierra 1500 AT4 2022-2026 GMC Sierra 1500 AT4X 2019-2021 GMC Sierra 1500 Base 2019-2026 GMC Sierra 1500 Denali 2022-2026 GMC Sierra 1500 Denali Ultimate 2019-2026 GMC Sierra 1500 Elevation 2022-2026 GMC Sierra 1500 Pro 2019-2026 GMC Sierra 1500 SLE 2019-2026 GMC Sierra 1500 SLT
SKU: QAPLK12-GMT06
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QA1 68-72 GM X-Body Mod Series Four Link Kit
Product Overview Ditch those clunky leaf springs and take control of your X-Body with QA1’s coilovers and triangulated 4-link. This upgrade improves ride quality, enhances handling performance, and enables you to dial in the perfect stance. With the added benefit of accommodating wider wheels and tires, this kit is the ideal solution for your car. Achieve the Perfect Stance Leaf springs limit your ability to achieve the perfect stance on your Nova. Upgrading to QA1’s coilovers and a tubular 4-link provides +2 to -3 inches of ride height adjustability, letting you dial in exactly the look you want. Fit Wider Wheels & Tires Designed to work with both standard and mini-tubs, this system offers generous clearance for up to 11-inch-wide wheels and 315mm tires. This results in a significantly more aggressive stance and improved traction and performance. Note: Achieving maximum wheel and tire width will require mini tubs. Ultimate Handling and Stability From twisty back roads to competitive track days, QA1’s 4-link design with MOD Series shocks is the perfect solution for your X-Body. 4-way adjustable valving offers independent tunability of both high and low speed compression and rebound. Easy, Installation & Adjustment Thoughtful design meets effortless installation requiring minimal welding. You’ll experience a painless installation and setup process, where adjusting ride height, pinion angle, or wheelbase is as simple as a few tweaks – no link removal required. No modifications to floor pan required. Note – Welding required Made in the USA QA1 suspension is proudly made in Lakeville, Minnesota. Fitment Notes Wheel and tire fitment should be verified on the vehicle Welding Required Includes Spanner Wrench QA1 Subframe Connectors strongly recommended May require Exhaust Modification This Part Fits: Year Make Model Submodel 1968 Chevrolet Chevy II Nova 1969-1972 Chevrolet Nova Base 1971-1972 Pontiac Ventura Base
SKU: QAPR358-170
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QA1 2019+ Chevrolet Silverado / GMC Sierra 1500 Single Adjustable Rear Drop Kit – 3in to 5in Drop
The QA1 rear drop kit is designed to lower the back of your 2019–2026 Silverado 1500 or Sierra 1500 while improving ride control and maintaining street comfort. Built with QA1 single adjustable rear shocks and vehicle-specific mounting hardware, it allows you to dial in ride quality while achieving a clean 3–5 inch rear drop. If you are looking to level stance, fine-tune rake, or complete a front suspension upgrade, this kit is a straightforward solution. CONTROLLED STANCE AND ADJUSTABILITY Lowering the rear of a modern truck should not introduce harshness or unpredictability. This kit uses QA1 single adjustable rear shocks to give you control over ride firmness, allowing you to tailor the rear suspension to match how you drive. With a single adjustment, you can tune the rear for daily driving, highway use, or a more composed street feel, helping the truck stay balanced and comfortable after lowering. ENGINEERED FOR STREET USE QA1 engineered this rear drop kit specifically for the weight and suspension characteristics of late-model half-ton trucks. The included rear shock package and mounting components are designed to work together, maintaining proper motion and control at a lowered ride height. Rather than relying on generic components, this system is built to integrate cleanly with the factory suspension architecture of the Silverado and Sierra platform. BOLT-IN CONVENIENCE This rear drop kit is designed as a bolt-in upgrade for 2019–2026 Silverado 1500 and Sierra 1500 trucks in both 2WD and 4WD configurations. No cutting or welding is required, making installation straightforward for weekend installs or professional shops alike. It pairs easily with QA1 front suspension components and is an ideal option for dialing in final stance or rake. This Part Fits: Year Make Model Submodel 2019-2026 Chevrolet Silverado 1500 Custom 2019-2026 Chevrolet Silverado 1500 Custom Trail Boss 2019-2026 Chevrolet Silverado 1500 High Country 2019-2026 Chevrolet Silverado 1500 LT 2019-2026 Chevrolet Silverado 1500 LT Trail Boss 2019-2026 Chevrolet Silverado 1500 LTZ 2023-2026 Chevrolet Silverado 1500 PPV 2019-2026 Chevrolet Silverado 1500 RST 2019-2021 Chevrolet Silverado 1500 SSV 2019-2026 Chevrolet Silverado 1500 WT 2022-2026 Chevrolet Silverado 1500 ZR2 2019-2026 GMC Sierra 1500 AT4 2022-2026 GMC Sierra 1500 AT4X 2019-2021 GMC Sierra 1500 Base 2019-2026 GMC Sierra 1500 Denali 2022-2026 GMC Sierra 1500 Denali Ultimate 2019-2026 GMC Sierra 1500 Elevation 2022-2026 GMC Sierra 1500 Pro 2019-2026 GMC Sierra 1500 SLE 2019-2026 GMC Sierra 1500 SLT
SKU: QAPRDK52633
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QA1 2019+ Chevrolet Silverado / GMC Sierra 1500 Double Adjustable Rear Drop Kit – 3in to 5in Drop
The QA1 rear drop kit is designed to lower the back of your 2019–2026 Silverado 1500 or Sierra 1500 while giving you precise control over ride quality and suspension behavior. Built with QA1 double adjustable rear shocks and vehicle-specific mounting hardware, it allows independent tuning of compression and rebound. If you want a clean 3–5 inch rear drop with maximum adjustment capability, this kit delivers. CONTROLLED STANCE AND ADJUSTABILITY Lowering the rear of a modern truck should improve how it drives, not introduce harshness or instability. This kit uses QA1 double adjustable rear shocks, giving you the ability to fine-tune suspension response to match your driving style. With independent compression and rebound adjustment, you can tailor rear ride quality for daily driving, highway use, or a more controlled, performance-oriented feel. ENGINEERED FOR STREET PERFORMANCE QA1 engineered this rear drop kit specifically for the weight and suspension geometry of late-model half-ton trucks. The included rear shock package and mounting components are designed to work as a system, maintaining control and predictability at a lowered ride height. Rather than relying on generic rear components, this kit integrates cleanly with the Silverado and Sierra suspension layout to deliver consistent performance and balanced handling. BOLT-IN CONVENIENCE This rear drop kit is designed as a bolt-in upgrade for 2019–2026 Silverado 1500 and Sierra 1500 trucks in both 2WD and 4WD configurations. No cutting or welding is required, making installation straightforward for street builds and daily-driven trucks. It pairs naturally with QA1 front Pro-Coil suspension systems and is an ideal option for dialing in final stance or rake. This Part Fits: Year Make Model Submodel 2019-2026 Chevrolet Silverado 1500 Custom 2019-2026 Chevrolet Silverado 1500 Custom Trail Boss 2019-2026 Chevrolet Silverado 1500 High Country 2019-2026 Chevrolet Silverado 1500 LT 2019-2026 Chevrolet Silverado 1500 LT Trail Boss 2019-2026 Chevrolet Silverado 1500 LTZ 2023-2026 Chevrolet Silverado 1500 PPV 2019-2026 Chevrolet Silverado 1500 RST 2019-2021 Chevrolet Silverado 1500 SSV 2019-2026 Chevrolet Silverado 1500 WT 2022-2026 Chevrolet Silverado 1500 ZR2 2019-2026 GMC Sierra 1500 AT4 2022-2026 GMC Sierra 1500 AT4X 2019-2021 GMC Sierra 1500 Base 2019-2026 GMC Sierra 1500 Denali 2022-2026 GMC Sierra 1500 Denali Ultimate 2019-2026 GMC Sierra 1500 Elevation 2022-2026 GMC Sierra 1500 Pro 2019-2026 GMC Sierra 1500 SLE 2019-2026 GMC Sierra 1500 SLT
SKU: QAPRDK52634
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QA1 Stocker Star Series Rear Shock – Double Adjustable – 14in to 21-1/2in – Bushing/Bushing
QA1 Double Adjustable Stocker Star Shock is an excellent choice for the rear of your 19-26 GM 1500 Truck that has been lowered 3-5 inches. This is an easy bolt-on solution to improve ride quality and performance. With a turn of the dial, you can easily adjust the shocks on the car to suit your goals for comfort or performance whether you’re cruising or driving down twisty backroads. TUNE YOUR RIDE COMFORT & PERFORMANCE Double-adjustable shocks are the ultimate in performance suspension. Independent tuning of rebound and compression allows you to fine-tune the handling and straight line performance of your vehicle for any driving condition. Adjustments are made at the base of the shock with 18 clicks of adjustment on each knob. This is the choice for drivers who want the absolute best possible handling and performance from their car. EASY, BOLT-IN INSTALLATION Stocker Star Shocks seamlessly bolt-in to factory locations, making installation a breeze. BEST-IN-CLASS WARRANTY QA1 Double Adjustable Stocker Star Shocks are eligible for a Limited Lifetime Warranty. For peace of mind, simply register your shocks at QA1.net/Warranty to ensure coverage for as long as you own your vehicle. This Part Fits: Year Make Model Submodel 2019-2026 Chevrolet Silverado 1500 Custom 2019-2026 Chevrolet Silverado 1500 Custom Trail Boss 2019-2026 Chevrolet Silverado 1500 High Country 2019-2026 Chevrolet Silverado 1500 LT 2019-2026 Chevrolet Silverado 1500 LT Trail Boss 2019-2026 Chevrolet Silverado 1500 LTZ 2023-2026 Chevrolet Silverado 1500 PPV 2019-2026 Chevrolet Silverado 1500 RST 2019-2021 Chevrolet Silverado 1500 SSV 2019-2026 Chevrolet Silverado 1500 WT 2022-2026 Chevrolet Silverado 1500 ZR2 2019-2026 GMC Sierra 1500 AT4 2022-2026 GMC Sierra 1500 AT4X 2019-2021 GMC Sierra 1500 Base 2019-2026 GMC Sierra 1500 Denali 2022-2026 GMC Sierra 1500 Denali Ultimate 2019-2026 GMC Sierra 1500 Elevation 2022-2026 GMC Sierra 1500 Pro 2019-2026 GMC Sierra 1500 SLE 2019-2026 GMC Sierra 1500 SLT
SKU: QAPTD809
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QA1 Stocker Star Series Rear Shock – Single Adjustable – 14in to 21-1/2in – Bushing/Bushing
This QA1 Single Adjustable Stocker Star Shock is an excellent choice for the rear of your 19-26 GM 1500 Truck that has been lowered 3-5 inches. This is an easy bolt-on solution to improve ride quality and performance. With a turn of the dial, you can easily adjust the shocks on the car to suit your goals for comfort or performance whether you’re cruising or driving down twisty backroads. TUNE YOUR RIDE COMFORT & PERFORMANCE QA1 Single Adjustable Stocker Star Shocks deliver exceptional ride quality and performance for your car or truck. With the simple turn of a dial, you can effortlessly switch between a comfortable cruise and a more aggressive feel, making them ideal for daily driving or twisty backroads. Accessing the 18-position knob is easy, allowing you to make adjustments at the base of the shock wherever you are. EASY, BOLT-IN INSTALLATION Stocker Star Shocks seamlessly bolt-in to factory locations, making installation a breeze. BEST-IN-CLASS WARRANTY QA1 Single Adjustable Stocker Star Shocks are eligible for a Limited Lifetime Warranty. For peace of mind, simply register your shocks at QA1.net/Warranty to ensure coverage for as long as you own your vehicle. This Part Fits: Year Make Model Submodel 2019-2026 Chevrolet Silverado 1500 Custom 2019-2026 Chevrolet Silverado 1500 Custom Trail Boss 2019-2026 Chevrolet Silverado 1500 High Country 2019-2026 Chevrolet Silverado 1500 LT 2019-2026 Chevrolet Silverado 1500 LT Trail Boss 2019-2026 Chevrolet Silverado 1500 LTZ 2023-2026 Chevrolet Silverado 1500 PPV 2019-2026 Chevrolet Silverado 1500 RST 2019-2021 Chevrolet Silverado 1500 SSV 2019-2026 Chevrolet Silverado 1500 WT 2022-2026 Chevrolet Silverado 1500 ZR2 2019-2026 GMC Sierra 1500 AT4 2022-2026 GMC Sierra 1500 AT4X 2019-2021 GMC Sierra 1500 Base 2019-2026 GMC Sierra 1500 Denali 2022-2026 GMC Sierra 1500 Denali Ultimate 2019-2026 GMC Sierra 1500 Elevation 2022-2026 GMC Sierra 1500 Pro 2019-2026 GMC Sierra 1500 SLE 2019-2026 GMC Sierra 1500 SLT
SKU: QAPTS809
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SPL 2017+ Tesla Model 3 / 2020+ Model Y / 2019+ BMW Z4 G29 FKS Caster Rod Bushings Non-Adjustable
SPL Parts FKS Series Non-Adjustable Front Caster Rod Bushings (CRBN) replace the stock flexible rubber bushings with low friction, articulating Spherical Bearings eliminating bushing deflection and reducing friction. This maintains optimum suspension geometry under load to improve braking and handling feedback. Massive 1″ sized FK Racing Bearings with self lubricating Teflon liners are used to ensure maximum performance and durability. Sold as a pair. Made in the USA
SKU: SPPSPL CRBN MOD3
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