The QA1 X Series Endura rod end (MPN XML6) is engineered for heavy-duty applications where strength and reliability are critical, such as 4-link and ladder bar suspensions. Built with a heat-treated chromoly steel body, this male rod end features increased cross-sectional thickness for superior tensile strength and metal-to-metal support to handle heavy shock loads.

• Precision Components: Features a 52100 bearing steel ball that is heat-treated, hard chrome plated, and precision ground for smooth, consistent articulation.
• Self-Lubricating Design: The Nylon/PTFE injection-molded race is completely self-sealing and self-lubricating, effectively keeping out dirt and road debris.
• Specifications: Male/Left-hand thread, 3/8-24 thread pitch, .375-inch bore size, and a protective coating for long-term corrosion resistance.
• Durability: Designed to meet the precise tolerances required for professional motorsport and high-performance street use.

The QA1 XM Series Endura male rod end (XML12) is engineered for high-strength applications where durability and precise tolerances are critical. This heavy-duty rod end is a preferred choice for 4-link systems and ladder bars, designed to withstand significant shock loads through increased cross-sectional thickness and robust metal-to-metal support.

Constructed with a heat-treated chromoly steel body and a protective coating for superior corrosion resistance, the XML12 features a precision-ground 52100 bearing steel ball that is heat-treated and hard chrome plated for longevity. The injection-molded Nylon/PTFE race is both self-sealing and self-lubricating, effectively excluding dirt and debris while maintaining smooth operation without maintenance.

• Part Number: XML12
• Series: XM Series Endura
• Thread: Male / Left Hand
• Bore Size: .75 in
• Thread Size: 3/4-16
• Body Material: Heat-Treated Chromoly Steel
• Ball Material: 52100 Bearing Steel (Hard Chrome Plated)
• Race Material: Nylon/PTFE Injection Molded
• Features: Self-sealing, self-lubricating, and corrosion resistant finish

The QA1 X Series Endura (XML10) is a heavy-duty male rod end engineered for demanding suspension geometries, such as 4-link and ladder bar systems. Built with a heat-treated chromoly steel body, this component provides the high tensile strength and increased cross-sectional thickness required to handle significant shock loads and racing stresses. The body is finished with a protective coating to ensure long-term corrosion resistance in harsh environments.

This left-hand thread rod end features an injection-molded Nylon/PTFE race that is both self-lubricating and self-sealing. This design keeps dirt and grit out of the assembly, maintaining smooth articulation without the need for constant maintenance. The precision-ground ball is manufactured from 52100 bearing steel, heat-treated and hard chrome plated to minimize friction and maximize service life.

• Manufacturer Part Number: XML10
• Series: X Series Endura
• Thread Size: 5/8-18 Left Hand Male
• Bore Diameter: .625 inches
• Body Material: Heat-treated Chromoly Steel
• Ball Material: 52100 Bearing Steel (Hard Chrome Plated)
• Race Material: Injection-molded Nylon/PTFE
• Features: Self-lubricating, self-sealing, metal-to-metal shock load support

The QA1 XF Series (XFR6) is a heavy-duty chromoly steel female rod end designed for high-stress automotive applications such as 4-link systems and ladder bars. Engineered to manage heavy shock loads, this rod end features an injection-molded PTFE race that is both self-sealing and self-lubricating, providing a maintenance-free bearing surface that keeps dirt and debris out.

Built for maximum tensile strength, the body is manufactured from heat-treated chromoly steel with a protective coating for long-term corrosion resistance. The internal ball is precision-ground from 52100 bearing steel, heat-treated, and hard chrome-plated to ensure a smooth, wear-resistant interface. The XF series provides metal-to-metal support with increased cross-sectional thickness to withstand the rigors of professional motorsports.

• Manufacturer Part Number: XFR6
• Series: XF Series (Endura)
• Orientation: Female Right Hand
• Bore Diameter: .375 inch (3/8")
• Thread Size: 3/8-24
• Body Material: Heat-treated Chromoly Steel
• Ball Material: 52100 Bearing Steel (Heat-treated, Hard Chrome-plated)
• Race Material: Injection-molded PTFE (Self-lubricating)

Designed for custom mount street rod and hot rod applications, the QA1 Ultra Ride Series shock absorber provides a high-performance solution for enthusiasts seeking a comfortable ride with precision tuning capabilities. This lightweight billet aluminum shock features a fixed compression setting optimized for street use, paired with 18 valving options for rebound adjustment to fine-tune your vehicle's handling and body control.

• Series: Ultra Ride Series
• Adjustment: Rebound Adjustable (18 Valving Positions)
• Material: Lightweight Billet Aluminum
• Mounting: Bushing Mount
• Compressed Length: 12.625 inches
• Extended Length: 18.75 inches
• Manufacturing: 100% Dyno Tested and Serialized; Made in the USA
• Serviceability: Fully rebuildable and serviceable by QA1 authorized centers
• Part Number: US602

Each shock offers easy bolt-in installation and provides ride height adjustability when used in a coil-over configuration. These shocks are engineered for longevity and consistent performance, ensuring your classic build maintains modern handling standards.

The QA1 Ultra Ride Series shock absorber is engineered specifically for street rods and custom applications where ride quality and stance are the top priorities. Constructed from lightweight billet aluminum, these shocks feature a fixed compression setting optimized for comfort paired with 18 levels of rebound adjustment, allowing you to fine-tune your vehicle's handling and body control.

These coil-over style shocks offer ride height adjustability and a straightforward bolt-in installation. Every unit is 100% dyno tested and serialized at QA1’s facility in the USA to ensure consistent damping performance right out of the box. Because they are fully serviceable and rebuildable, these shocks are a long-term suspension solution for any custom build.

• Manufacturer Part Number: US502
• Adjustment Type: Single Adjustable (Rebound) with 18 valving options
• Compressed Length: 11.625 in
• Extended Length: 16.875 in
• Material: Lightweight Billet Aluminum
• Mounting: Bushing Mount
• Features: Ride height adjustable, 100% dyno tested and serialized
• Origin: Made in the USA
• Serviceability: Fully rebuildable and serviceable

The QA1 Ultra Ride Series US402 shock absorber is engineered specifically for street rods and custom builds that prioritize ride quality without sacrificing control. Machined from lightweight billet aluminum in the USA, this rebound-adjustable coil-over shock features 18 distinct valving options. This allow you to fine-tune the suspension extension (rebound) while maintaining a comfortable, fixed compression rate for a smooth street-friendly feel.

• Precision Tuning: 18 rebound valving options to dial in vehicle handling and comfort.
• Dimensions: Features a compressed length of 10.125 inches and an extended length of 14 inches.
• Premium Construction: Lightweight billet aluminum body provides durability and effective heat dissipation.
• Quality Assured: 100% dyno tested and serialized; fully serviceable and rebuildable by QA1 authorized centers.
• Installation: Easy bolt-in design featuring bushing mounts and integrated ride height adjustability.

Each QA1 US402 shock is designed to solve the harsh ride common in hot rods by providing a high-quality, American-made damping solution that is both tunable and rebuildable for long-term service.

Fits select 1994-2008 Dodge Ram 1500 and 1999-2007 Chevrolet Silverado 1500 (5.9L).

The QA1 Stocker Star Series single adjustable rear shock absorber gives you precise control over your truck's ride quality and handling. These shocks feature 18-way simultaneous adjustment of rebound and compression valving, allowing you to dial in the suspension for any load or driving condition. Built with a lightweight billet aluminum smooth body, the TS905 is a direct bolt-in replacement for factory shocks, offering a significant upgrade in durability and response over standard OE units.

• Single 18-way adjustable valving for simultaneous rebound and compression tuning
• Lightweight billet aluminum construction with a smooth body finish
• Easy bolt-in installation to factory mounting points
• 100% dyno tested and serialized for quality assurance
• Fully serviceable and rebuildable by QA1 authorized centers
• Collapsed Length: 15.000 in
• Extended Length: 23.625 in
• Manufacturer Part Number: TS905
• Proudly made in the USA

Fits select 1988-1998 Chevrolet C1500 and GMC C1500 (V8-7.4L / V8-5.7L / V8-5.0L / V6-4.3L) pickup models.

The QA1 Stocker Star Series single adjustable rear shock (TS904) provides a precise suspension upgrade for 1988-1998 GM C1500 trucks. These lightweight billet aluminum smooth-body shocks are engineered to replace factory units with a direct bolt-in installation, working seamlessly with your original suspension components. The integrated adjustment knob features 18-way simultaneous tuning of rebound and compression valving, allowing you to dial in specific ride quality and handling performance for street or track use.

• Simultaneous 18-Way Adjustment: Single-knob control adjusts both compression and rebound to fine-tune dampening.
• High-Quality Construction: CNC-machined billet aluminum body provides strength and heat dissipation while reducing unsprung weight.
• Reliability & Support: Each shock is 100% dyno tested and serialized; fully serviceable and rebuildable by QA1 authorized centers.
• Direct Replacement: Designed to mount to factory mounting points without modification.

Specifications:

• Compressed Length: 14.875 in
• Extended Length: 23.625 in
• Material: Billet Aluminum
• Valving: Single Adjustable (18-way)
• Installation: Bolt-in
• Warranty: Limited Lifetime Warranty
• Manufacturer Part Number: TS904
• Origin: Made in the USA

Fits select 1957-1996 Buick, Chevrolet, Oldsmobile, and Pontiac vehicles, including Chevelle, Malibu, Regal, Cutlass, and Impala models.

The QA1 Stocker Star Series single adjustable rear shock provides a versatile performance upgrade for classic GM A, B, G, and X-body platforms. Engineered for enthusiasts who prioritize both ride quality and handling, these shocks feature a single 18-way adjustment knob that simultaneously tunes rebound and compression valving. This allow you to dial in your suspension for specific track conditions or street comfort without removing the shock from the vehicle.

Constructed from lightweight 6061-T6 billet aluminum, these shocks are designed as a direct bolt-in replacement for factory non-coilover units. Each shock is 100% dyno tested and serialized to ensure consistent damping performance across its entire range of travel. For long-term serviceability, the TS801 is fully rebuildable and revalveable by QA1 factory service centers.

• Simultaneous 18-way rebound and compression adjustment
• Lightweight aluminum body with 13.75" compressed and 21.25" extended lengths
• Bolt-in installation to factory mounting points with no cutting or welding required
• Serialized and 100% dyno tested for accuracy
• Rebuildable and revalveable design
• Limited Lifetime Warranty
• Made in Lakeville, Minnesota, USA
• Manufacturer Part Number: TS801

Fits 1963-1972 Chevrolet C10 Panel, Pickup, and Suburban models equipped with rear leaf springs.

The QA1 Stocker Star Series rear shock absorber (TS709) is a lightweight, high-performance solution for Chevy C10 owners seeking precise control over their suspension tuning. Constructed from billet aluminum, these smooth-body shocks feature a single adjustment knob that simultaneously controls both rebound and compression across 18 distinct valving positions. This allows for rapid fine-tuning of ride quality and handling characteristics directly on the vehicle without removal.

Designed as a direct bolt-in replacement for factory rear shocks on leaf spring-equipped trucks, these units are 100% dyno tested and serialized to ensure consistent performance. The rebuildable design and limited lifetime warranty make these a long-term investment for street performance or enthusiast builds.

• Manufacturer Part Number: TS709
• Adjustment: 18-Way Simultaneous Compression and Rebound
• Material: Lightweight Billet Aluminum
• Compressed Length: 12.875 inches
• Extended Length: 19.5 inches
• Configuration: Rear Shock for Leaf Spring Suspensions
• Origin: Made in the USA
• Serviceability: Fully Rebuildable and Serviceable

Fits select 2005-2014 Ford Mustang (Base, GT, Boss 302, Bullitt, and Shelby GT/GT500/KR).

The QA1 Stocker Star Series single adjustable rear shock offers a precise balance of street comfort and track performance for the S197 chassis. These lightweight billet aluminum shocks feature a smooth body design and provide 18 positions of simultaneous rebound and compression adjustment, allowing you to fine-tune your suspension damping with a simple knob turn. Engineered for easy, bolt-in installation, these shocks replace the factory rear dampers using existing mounting points without modification.

• 18-way simultaneous adjustment of rebound and compression valving
• Lightweight billet aluminum smooth body construction
• 100% dyno tested and serialized for consistent performance
• Fully rebuildable and serviceable by QA1 authorized centers
• Direct bolt-in installation compatible with factory suspension
• Made in the USA

• Manufacturer Part Number: TS708
• Compressed Length: 13.125 in
• Extended Length: 20.5 in
• Finish: Aluminum
• Adjustment Type: Single Adjustable

Fits 1979-2004 Ford Mustang (Base, Cobra, GT, LX, Mach 1, and SVT Cobra).

The QA1 Stocker Star Series single adjustable rear shock provides a bolt-in suspension upgrade for Fox Body and SN95 Mustang owners. These shocks feature 18-way simultaneous adjustment of both rebound and compression valving, allowing you to quickly dial in the suspension for street comfort or track performance. Constructed from lightweight billet aluminum, these smooth-body shocks offer a significant weight reduction over factory steel components and are fully rebuildable and serviceable.

• 18-way simultaneous adjustment of rebound and compression valving
• Lightweight billet aluminum smooth body construction
• Direct bolt-in installation using factory mounting points
• 100% dyno tested and serialized for quality control
• Compressed Length: 13.25 inches
• Extended Length: 20.5 inches
• Serviceable and rebuildable by QA1 authorized centers
• Manufacturer Part Number: TS706
• Proudly made in the USA

Fits select 1982-2002 Chevrolet Camaro and Pontiac Firebird models. This QA1 Stocker Star Series rear shock absorber provides a direct-fit solution for 3rd and 4th Gen F-Body enthusiasts looking to dial in their suspension performance.

Constructed from lightweight billet aluminum, these smooth body shocks are designed for easy, bolt-in installation using factory mounting points. The single-adjustable valving system provides 18-way simultaneous adjustment of both rebound and compression, allowing you to quickly tune your ride quality and handling characteristics for the street or the track.

Every QA1 Stocker Star shock is 100% dyno tested and serialized to ensure consistent performance. These units are fully serviceable and rebuildable, offering a long-term suspension solution backed by a limited lifetime warranty. Made in the USA.

• Manufacturer Part Number: TS704
• Adjustability: 18-way Single Adjustable (Simultaneous Rebound/Compression)
• Dimensions: 12.375in Compressed / 19in Extended
• Body Material: Lightweight Billet Aluminum
• Construction: Smooth Body, Dyno Tested and Serialized
• Serviceability: Fully Rebuildable by Authorized Centers
• Origin: Made in the USA

Fits select 1962-1976 Chevrolet Camaro, Chevy II/Nova, Pontiac Firebird, and Ford Torino models.

The QA1 Stocker Star Series Rear Shock Absorber (TS703) provides a performance-oriented, bolt-in solution for owners of classic muscle cars. These smooth-body shocks are manufactured from lightweight billet aluminum and feature simultaneous 18-way adjustment of rebound and compression valving. This single-knob adjustment allows you to quickly dial in the perfect balance between street comfort and track performance without removing the shock from the vehicle.

Designed to work with factory suspension mounting points, these shocks are 100% dyno tested and serialized to ensure consistent performance and longevity. The rebuildable and serviceable design makes them a long-term investment for any restoration or performance build.

• Simultaneous 18-way adjustment for compression and rebound
• Lightweight billet aluminum smooth body construction
• 12.375-inch compressed to 19-inch extended length
• Simple bolt-in installation for factory non-coil-over applications
• Fully rebuildable and serviceable by QA1 authorized centers
• Manufactured in the USA
• Manufacturer Part Number: TS703

Fits 1970-1981 Chevrolet Camaro and Pontiac Firebird. These QA1 Stocker Star Series rear shock absorbers provide a bolt-in solution for upgrading your F-Body's factory suspension with modern, adjustable valving. Built from lightweight billet aluminum, these shocks replace worn factory units while offering significantly improved handling and ride quality.

The TS702 features a single adjustment knob that simultaneously tunes both compression and rebound across 18 distinct positions. This allow owners to dial in the perfect balance between street cruising comfort and firm performance handling. Every shock is 100% dyno tested and serialized to ensure consistent damping curves right out of the box.

• Adjustment: Single 18-way simultaneous rebound and compression control
• Body Material: Lightweight billet aluminum
• Compressed Length: 13.125 inches
• Extended Length: 19.625 inches
• Installation: Direct bolt-in to factory mounting points
• Maintenance: Fully rebuildable and serviceable by QA1 authorized centers
• Manufacturing: Made in the USA
• Manufacturer Part Number: TS702

Each shock includes a Limited Lifetime Warranty and is designed to work seamlessly with factory-style rear suspension components.

Fits select 1960-1973 Ford and Mercury models, including Mustang, Falcon, Fairlane, Torino, Cougar, Comet, and Cyclone.

The QA1 Stocker Star Series rear shock absorber (MPN: TS601) offers a significant performance upgrade for classic Ford and Mercury platforms. Featuring a lightweight billet aluminum smooth body, these shocks are designed for easy, bolt-in installation to factory mounting points. The single-adjustable valving provides 18 levels of simultaneous rebound and compression adjustment, allowing you to fine-tune your vehicle's ride quality and handling characteristics to match your driving style.

• Valving: Single 18-way simultaneous rebound and compression adjustment
• Compressed Length: 11.0 inches
• Extended Length: 15.875 inches
• Construction: Lightweight billet aluminum smooth body, made in the USA
• Quality Control: 100% dyno tested and serialized
• Serviceability: Fully rebuildable and serviceable by authorized centers
• Warranty: Limited Lifetime Warranty
• Manufacturer Part Number: TS601

Fits 1988-1996 Chevrolet Corvette models (including Base, ZR-1, Grand Sport, and 35th/40th Anniversary editions).

The QA1 Stocker Star Series single adjustable rear shock absorber provides a direct-fit performance upgrade for the C4 Corvette chassis. Constructed from lightweight billet aluminum, these smooth-body shocks feature an 18-way simultaneous adjustment of rebound and compression valving. This allows drivers to fine-tune ride quality and handling characteristics for both street performance and track conditions without removing the shock from the vehicle.

Each unit is 100% dyno-tested and serialized to ensure consistent damping curves across the adjustment range. These shocks are fully serviceable and rebuildable, offering a long-term suspension solution that bolts directly to factory mounting points. Proudly made in the USA, the Stocker Star Series balances weight reduction with high-tolerance internal components for superior heat dissipation and response.

• Simultaneous 18-way adjustment of rebound and compression valving
• Lightweight billet aluminum smooth body construction
• Direct bolt-in installation to factory C4 Corvette mounting points
• Compressed Length: 9.625 inches
• Extended Length: 14.5 inches
• 100% dyno-tested and serialized
• Rebuildable and serviceable by QA1 authorized centers
• Manufacturer Part Number: TS512
• Made in the USA

Fits select 1960-1978 Dodge and Plymouth models including Charger, Challenger, Dart, Valiant, and Fury.

The QA1 Stocker Star Series TS501 shock absorber offers a significant upgrade for classic Mopar front suspensions. This single-adjustable shock provides 18-way simultaneous adjustment of both rebound and compression valving, allowing you to fine-tune your ride quality and handling characteristics with a simple turn of a knob. Constructed from lightweight billet aluminum with a smooth body finish, these shocks replace worn factory dampers with a high-performance, bolt-in solution that integrates perfectly with your stock mounting points.

• Simultaneous 18-way rebound and compression adjustment
• Lightweight billet aluminum smooth body construction
• 100% dyno tested and serialized for quality assurance
• Fully rebuildable and serviceable by QA1 authorized centers
• Compressed Length: 10.375 inches
• Extended Length: 15.375 inches
• Manufacturer Part Number: TS501
• Made in the USA
• Limited Lifetime Warranty

Fits select 1963-1982 Chevrolet Corvette models including Base, Stingray, and special editions.

The QA1 Stocker Star Series single-adjustable rear shock (MPN: TS403) provides the ultimate balance between ride quality and performance handling. This smooth-body shock features a lightweight aluminum construction and simultaneous 18-way adjustment of rebound and compression valving. Engineered as a direct bolt-in replacement for the factory rear suspension, it allows you to fine-tune your Corvette's damping characteristics without any cutting, welding, or chassis modification.

• Simultaneous 18-way single adjustment of rebound and compression
• Lightweight aluminum body for reduced unsprung weight
• 100% dyno tested and serialized for quality assurance
• Direct-fit stock mount installation
• Rebuildable and revalveable by QA1 or authorized service centers
• Compressed length: 10.5 inches
• Extended length: 14.375 inches
• Proudly made in the USA
• Manufacturer Part Number: TS403
• Limited Lifetime Warranty included

Fits 1988-1998 Chevrolet and GMC C1500 pickups including 454 SS, Silverado, Sierra, and WT models.

The QA1 Stocker Star Series rear shock absorber provides a high-performance suspension upgrade for classic GM C1500 trucks. These smooth-body shocks are CNC-machined from lightweight billet aluminum and feature fixed valving specifically tuned for a balance of ride comfort and improved handling. Designed for a direct bolt-in fit, they utilize factory mounting locations for a straightforward installation process without the need for specialized modifications.

To ensure consistent performance and reliability, every shock is 100% dyno tested and serialized at QA1’s facility. The rebuildable design allows for long-term serviceability, ensuring your suspension remains in peak condition.

• Manufacturer Part Number: TN904
• Series: Stocker Star
• Material: Billet aluminum smooth body
• Compressed Length: 14.625 inches
• Extended Length: 23.875 inches
• Adjustment Type: Non-adjustable fixed valving
• Serviceability: Rebuildable and serviceable by QA1 centers
• Manufacturing: Made in the USA

Fits select 1957-1996 Buick, Chevrolet, Oldsmobile, and Pontiac models including Century, Regal, Caprice, Chevelle, El Camino, Impala, Malibu, Monte Carlo, Cutlass, and LeMans. The QA1 Stocker Star Series TN801 is a high-performance rear shock absorber designed to bolt directly to factory mounting points. These non-adjustable shocks feature fixed valving for a consistent ride quality and improved handling over stock OE components on GM A, B, G, and X-body platforms.

• Billet aluminum smooth body construction for lightweight durability and heat dissipation.
• Compressed length: 13.625 inches; Extended length: 21.125 inches.
• 100% dyno tested and serialized to ensure precise damping performance.
• Serviceable and rebuildable by QA1 authorized service centers.
• Simple bolt-in installation compatible with factory suspension.
• Manufacturer Part Number: TN801.
• Proudly made in the USA.

The TN801 shock provides a reliable performance upgrade for classic GM muscle cars and full-size cruisers, backed by a limited lifetime warranty.

Fits select 1955-2006 Chevrolet (Camaro, Corvette, Silverado, Impala), GMC, Ford, Buick, Oldsmobile, and Pontiac models.

The QA1 Stocker Star Series provides a high-performance, direct-fit solution for drivers seeking a reliable suspension upgrade without the complexity of manual adjustments. These non-adjustable front shocks are precision-valved to offer a balanced ride that improves handling and stability over factory steel shocks. Engineered for durability and weight savings, the TN507 features a lightweight billet aluminum smooth body construction that reduces unsprung weight for better suspension response.

Every Stocker Star shock is 100% dyno tested and serialized at QA1's facility to ensure consistent performance right out of the box. Designed for a true bolt-in installation, these shocks utilize your vehicle's factory mounting points, making them an ideal choice for restoring or modernizing classic GM A, B, and F-body vehicles, as well as select Ford and late-model GM trucks.

• Direct-fit bolt-in installation for factory suspension systems
• Lightweight billet aluminum construction with a smooth body finish
• Non-adjustable valving optimized for ride quality and control
• 9-inch compressed and 14-inch extended length
• 100% dyno tested and serialized for quality assurance
• Fully rebuildable and serviceable by QA1 authorized centers
• Proudly made in the USA
• Manufacturer Part Number: TN507

Fits 1962-1967 Chevrolet Chevy II, Nova, and Nova SS.

The QA1 Stocker Star Series Front Shock Absorber (TN506) provides a high-performance upgrade for your classic Chevy II suspension. These lightweight billet aluminum smooth-body shocks feature fixed, non-adjustable valving designed to provide superior ride quality and handling over factory steel units. Each shock is 100% dyno tested and serialized in the USA to ensure consistent damping performance across its stroke. Designed for a direct bolt-in installation, they mount to your vehicle's factory locations without modifications.

• Manufacturer Part Number: TN506
• Material: Lightweight billet aluminum
• Body Style: Smooth body
• Adjustment: Non-adjustable valving
• Collapsed Length: 9.875 inches
• Extended Length: 14.875 inches
• Serviceable and rebuildable by QA1 authorized centers
• Proudly made in the USA

Fits select 1963-1999 Chevrolet C10, C10 Suburban, and C1500 trucks and SUVs.

The QA1 Stocker Star Series Non-Adjustable front shock (TN405) provides a high-performance ride quality upgrade for classic and late-model Chevy trucks. Engineered for easy, bolt-in installation with factory suspension components, these lightweight billet aluminum smooth body shocks replace worn OE dampers to improve handling and chassis control. Each unit is 100% dyno tested and serialized to ensure consistent damping performance right out of the box.

Constructed in the USA from premium billet aluminum, these shocks offer superior heat dissipation and weight reduction compared to standard steel-bodied shocks. The non-adjustable valving is specifically calibrated for street performance, offering a firm yet comfortable ride. These units are fully serviceable and rebuildable, ensuring long-term reliability for your truck or SUV.

• Manufacturer Part Number: TN405
• Compressed Length: 10.625 inches
• Extended Length: 14.5 inches
• Material: Lightweight billet aluminum
• Body Style: Smooth body shock
• Features: Serviceable and rebuildable by QA1 authorized centers
• Testing: 100% Dyno tested and serialized
• Warranty: Limited Lifetime Warranty
• Origin: Made in the USA

Fits 1997-2004 Ford F-150 2WD models including Lightning, XL, XLT, Lariat, King Ranch, and Harley-Davidson Edition.

The QA1 Stocker Star Series TD906 rear shock absorber provides professional-grade suspension tuning in a bolt-in package for 10th generation Ford F-150 pickups. Constructed from lightweight billet aluminum, these smooth-body shocks feature double-adjustable valving, allowing for independent 18-way adjustment of both rebound and compression. With 324 possible valving combinations, you can precisely dial in weight transfer and ride quality for street performance or track use.

Every TD906 shock is 100% dyno-tested and serialized to ensure consistent damping curves right out of the box. Designed for durability and longevity, these shocks are fully serviceable and rebuildable by QA1 authorized centers and are backed by a limited lifetime warranty.

• Independently adjustable 18-way compression and 18-way rebound valving
• Lightweight machined billet aluminum body
• Direct bolt-in replacement for factory rear shocks
• Compressed Length: 14.375 inches
• Extended Length: 23.125 inches
• Proudly made in the USA
• Manufacturer Part Number: TD906

Upgrade your truck's handling and ride quality with the QA1 Stocker Star Series Rear Shock Absorber. Fits select 1994-2008 Dodge Ram 1500 and 1999-2007 Chevrolet Silverado 1500 (5.9L). These double-adjustable shocks provide independent control over both compression and rebound valving, allowing you to fine-tune your suspension for specific hauling needs, track performance, or street comfort.

Constructed from lightweight billet aluminum, these smooth-body shocks feature a bolt-in design that mounts directly to factory locations without modification. Each shock is 100% dyno tested and serialized to ensure consistent performance. Because they are fully serviceable and rebuildable, these shocks offer a long-term suspension solution compared to disposable factory units.

• Double adjustable valving with 18 positions for rebound and 18 for compression (324 total combinations)
• Compressed Length: 15.000 inches
• Extended Length: 23.625 inches
• Lightweight 6061-T6 billet aluminum construction
• Direct bolt-in installation for factory suspension mounts
• Precision-machined piston with PTFE-wrapped non-stick band
• Serviceable and rebuildable by QA1 authorized centers
• Manufacturer Part Number: TD905
• Made in the USA

Fits select 1988-1998 Chevrolet and GMC C1500 pickup trucks across various trims including 454 SS, Silverado, Sierra, and WT models.

The QA1 Stocker Star Series TD904 rear shock absorber provides a significant performance upgrade over factory dampers, offering independent control over both compression and rebound. These double-adjustable shocks feature 18 positions for each adjustment, providing 324 possible valving combinations to tune your C1500's ride for any application—from daily driving to performance hauling. Built with a lightweight, smooth-body billet aluminum housing, these shocks are 100% dyno tested and serialized to ensure consistent damping curves across the manufacturing run.

• Double Adjustable Valving: Independent 18-way adjustment of rebound and compression for precise suspension tuning.
• Direct Bolt-In: Engineered to mount directly to factory locations without modification.
• Premium Construction: CNC-machined billet aluminum body for durability and weight savings.
• Rebuildable Design: Fully serviceable and rebuildable by QA1 authorized centers for long-term reliability.
• Specifications: 14.875-inch collapsed length; 23.625-inch extended length.
• Made in the USA: Proudly manufactured in QA1’s Lakeville, Minnesota facility.

• Manufacturer Part Number: TD904
• Material: Billet Aluminum
• Adjustability: Double Adjustable (18-way rebound / 18-way compression)
• Warranty: Limited Lifetime Warranty