QA1 Suspension & Shocks Collection

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QA1

QA1 is a premier manufacturer of performance suspension, shock, and driveline components. Trusted by racers and enthusiasts, QA1 products are engineered to deliver precise handling, improved ride quality, and reliable performance across a wide range of applications—from street-driven muscle cars to dedicated track machines and off-road rigs.

Adjustable and non-adjustable shocks and struts
Coilover conversion kits and systems
Tubular control arms and suspension arms
Ball joints, bushings, and alignment components
Driveshafts and driveline accessories

Whether you're building a pro-touring classic, upgrading your late-model muscle car, or prepping a race vehicle, QA1 offers the tuning capability and durability you need. Explore our full QA1 collection to find the right parts for your project.

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Ball Joints (3)
Coil Springs (31)
Control Arms (39)
Engine Bearings (5)
Framer Belts (2)
Motor Vehicle Engine Parts (11)
Motor Vehicle Frame & Body Parts (7)
Motor Vehicle Parts (352)
Motor Vehicle Suspension Parts (326)
Nuts & Bolts (1)
Struts (1)
Sway Bars (27)
Tools (5)
Vehicle Headrest Hangers & Hooks (4)
Wheel Bearings & Hubs (1)

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364 products

In stock

Range min Range max

$ Input price min

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QA1 (364)

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Ball Joints (3)
Coil Springs (31)
Control Arms (39)
Engine Bearings (5)
Framer Belts (2)
Motor Vehicle Engine Parts (11)
Motor Vehicle Frame & Body Parts (7)
Motor Vehicle Parts (352)
Motor Vehicle Suspension Parts (326)
Nuts & Bolts (1)
Struts (1)
Sway Bars (27)
Tools (5)
Vehicle Headrest Hangers & Hooks (4)
Wheel Bearings & Hubs (1)

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Silver powder coated QA1 high travel coilover spring, 10-inch length and 2.5-inch inside diameter.

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QA1 2-1/2in ID High Travel Spring, 10in Length x 450lbs/in, Silver - 10HT450

$79.95 $88.57

-10%

Unit price

The QA1 10HT450 High Travel Spring is engineered for drivers seeking maximum suspension travel and reduced unsprung weight without sacrificing performance. Manufactured in the USA from high-tensile chrome silicon alloy steel, this spring uses a smaller wire diameter and fewer coils than standard designs. This configuration provides a larger distance between coils, allowing for increased travel and preventing premature coil-bind during aggressive maneuvers.

Each spring undergoes a rigorous manufacturing process, including cold winding, heat treating, and shot peening, to ensure a long fatigue life and consistent performance. The ends are precision ground to ensure the spring sits square on the perch for linear operation. Finished in a durable silver powder coat, these springs are clearly marked with their free length and rate for quick identification at the track or in the shop.

Manufacturer Part Number: 10HT450
Inside Diameter: 2.5 inches
Free Length: 10 inches
Spring Rate: 450 lbs/in
Material: High-tensile chrome silicon alloy
Finish: Silver powder coated
Construction: Cold wound, heat treated, and shot peened
End Style: Squared and ground
Guarantee: Lifetime guarantee to remain within 2% of original free height and rate
Origin: Made in the USA

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Silver powder coated QA1 10-inch High Travel coil spring with 2.5-inch inner diameter and 300-pound rate.

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QA1 High Travel Spring 2-1/2in ID - 10in Length x 300lbs/in Silver - 10HT300

$79.95 $88.57

-10%

Unit price

The QA1 10HT300 High Travel Spring is engineered for drivers seeking maximum suspension travel and reduced unsprung weight without sacrificing durability. Manufactured in the USA from high-tensile chrome silicon alloy, this 10-inch spring features a 2-1/2-inch inner diameter and a 300 lbs/in rate. The specialized high-tensile wire allows for fewer coils and a smaller wire diameter compared to standard springs, resulting in a lighter component that reacts faster to track or road conditions.

Every spring is cold-wound, heat-treated, and shot-peened to ensure long-term consistency and fatigue resistance. The ends are precision-ground to ensure the spring sits flat and operates linearly. Designed to be compressed to coil-bind without affecting the free height or spring rate, these springs are finished in a durable silver powder coat for lasting corrosion resistance.

Manufacturer Part Number: 10HT300
Inner Diameter: 2-1/2 inches
Free Length: 10 inches
Spring Rate: 300 lbs/in
Material: High-tensile chrome silicon steel
Construction: Cold-wound, heat-treated, and shot-peened
Finish: Silver powder coated
End Style: Squared and ground
Guarantee: Lifetime guarantee to remain within 2% of original free height and rate
Origin: Made in the USA

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Black powder coated QA1 10HT200B High Travel coilover spring with high-tensile chrome silicon alloy coils.

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QA1 10HT200B High Travel Spring, 2-1/2in ID x 10in Length, 200lbs/in - Black

$79.95 $88.57

-10%

Unit price

The QA1 10HT200B High Travel Spring is engineered to optimize suspension performance by reducing unsprung weight and increasing available travel. Manufactured in the USA from specialized high-tensile chrome silicon alloy, these springs utilize a smaller wire diameter and fewer coils than standard designs. This creates a larger distance between coils to prevent coil bind while allowing the suspension to react faster to track and road inputs.

Part Number: 10HT200B
Inside Diameter: 2-1/2 inches
Free Length: 10 inches
Spring Rate: 200 lbs/in
Material: High-tensile chrome silicon alloy wire
Finish: Durable black powder coat
Origin: Made in the USA
Warranty: Lifetime guarantee to remain within 2% of original free height and rate under normal operating conditions

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Silver powder coated QA1 high travel spring, 2.5 inch inner diameter and 10 inch length.

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QA1 10HT200 High Travel Spring, 2-1/2in ID x 10in Length, 200 lbs/in - Silver

$79.95 $88.57

-10%

Unit price

The QA1 10HT200 High Travel Spring is engineered for drivers seeking maximum suspension travel and reduced unsprung weight. Manufactured in the USA from high-tensile chrome silicon alloy, this 2-1/2 inch ID spring uses a smaller wire diameter and fewer coils than standard springs without sacrificing strength. This design increases the distance between coils to prevent premature coil bind and allows the suspension to react faster to track conditions.

Precision Construction: Cold-wound, heat-treated, and shot-peened for superior fatigue life and durability.
Consistent Performance: Both ends are squared and ground for straight, accurate operation and even load distribution.
Premium Finish: Features a durable silver powder coated finish for corrosion resistance.
Identification: Free length and spring rate are clearly marked on the coil for quick identification.
Lifetime Guarantee: QA1 guarantees these springs will remain within 2% of the original free height and rate under normal operating conditions.

Specifications:
Part Number: 10HT200
Inner Diameter: 2.5 inches
Free Length: 10 inches
Spring Rate: 200 lbs/in
Material: Chrome Silicon Steel

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