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QA1 Rear Suspension Conversion Systems

4.71 out of 5 stars 17 Customer Reviews

QA1 rear suspension conversion systems provide easy, bolt-in options to replace your coil springs on factory truck arms—without any cutting, welding, or other fabricating. Each kit contains frame brackets, axle brackets, linkage assemblies, a crossmember assembly, and necessary hardware. The conversions are available with coilovers or available for use with the factory springs. Order the model designed for fitment on your specific vehicle, and enjoy the stance, handling, and suspension performance of a revolutionary QA1 system.

Results 1 - 25 of 48

Rear Suspension Package, 0-6.00 in. drop, Includes C-notch. Medium Ride, Single Adjustable. C10, 63-72

Part Number: QA1-R110-200

4.67 out of 5 stars ( 3 )

Estimated Ship Date: Monday 11/3/2025

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Estimated Ship Date: Monday 11/3/2025

Rear Suspension Package, 0-6.00 in. drop, Includes C-notch. Medium Ride, Double Adjustable. C10, 63-72

Part Number: QA1-R210-200

4.25 out of 5 stars ( 4 )

Estimated Ship Date: Monday 11/3/2025

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Estimated Ship Date: Monday 11/3/2025

Rear Suspension System, Adjustable, Single Adjustable Coilover, 200 lbs./in., Torque Arm, Panhard Bar, GM 12-Bolt, Chevy C10, Kit

Part Number: QA1-R131-200

Not Yet Reviewed

Estimated Ship Date: Monday 11/3/2025

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Estimated Ship Date: Monday 11/3/2025

Rear Suspension Package, Single Adjustable, Medium Ride. C10, 63-72

Part Number: QA1-RCK52612

Not Yet Reviewed

Estimated Ship Date: Monday 11/3/2025

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Estimated Ship Date: Monday 11/3/2025

Rear Suspension Package, 0-6.00 in. drop, Includes C-notch. Firm Ride, Double Adjustable. C10, 63-72

Part Number: QA1-R210-250

Not Yet Reviewed

Estimated Ship Date: Monday 11/3/2025

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Estimated Ship Date: Monday 11/3/2025

Rear Suspension System, Adjustable, Single Adjustable Coilover, 200 lbs./in., Torque Arm, Panhard Bar, GM 10-Bolt, Chevy C10, Kit

Part Number: QA1-R130-200

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 11/3/2025

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Estimated Ship Date: Monday 11/3/2025

Rear Suspension System, Adjustable, Single Adjustable Coilover, 250 lbs./in., Torque Arm, Panhard Bar, Ford 9 in., Chevy C10, Kit

Part Number: QA1-R132-250

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 11/3/2025

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Estimated Ship Date: Monday 11/3/2025

Rear Suspension Package, Double Adjustable, Medium Ride. C10, 63-72

Part Number: QA1-RCK52616

Not Yet Reviewed

Estimated Ship Date: Monday 11/3/2025

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Estimated Ship Date: Monday 11/3/2025

Rear Coilover Conversion System, Double Adjustable, 200 lbs./in. Spring Rate, Ford, Kit

Part Number: QA1-R221-200

Not Yet Reviewed

Estimated Ship Date: Dec 1, 2025 if ordered today

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Estimated Ship Date: Dec 1, 2025 if ordered today

Rear Suspension System, Adjustable, Double Adjustable Coilover, 200 lbs./in., Torque Arm, Panhard Bar, GM 10-Bolt, Chevy C10, Kit

Part Number: QA1-R230-200

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 11/3/2025

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Estimated Ship Date: Monday 11/3/2025

Rear Suspension Package, 0-6.00 in. drop, Includes C-notch. Soft Ride, Double Adjustable. C10, 63-72

Part Number: QA1-R210-170

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 11/3/2025

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Estimated Ship Date: Monday 11/3/2025

Rear Suspension Package, 0-6.00 in. drop, Includes C-notch. Soft Ride, Single Adjustable. C10, 63-72

Part Number: QA1-R110-170

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 11/3/2025

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Estimated Ship Date: Monday 11/3/2025

Rear Suspension System, Adjustable, Double Adjustable Coilover, 250 lbs./in., Torque Arm, Panhard Bar, GM 10-Bolt, Chevy C10, Kit

Part Number: QA1-R230-250

Not Yet Reviewed

Estimated Ship Date: Monday 11/3/2025

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Estimated Ship Date: Monday 11/3/2025

Rear Coilover Conversion System, Double Adjustable, 250 lbs./in. Spring Rate, Ford, Kit

Part Number: QA1-R221-250

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Dec 1, 2025 if ordered today

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Estimated Ship Date: Dec 1, 2025 if ordered today

Rear Suspension System, Adjustable, Double Adjustable Coilover, 200 lbs./in., Torque Arm, Panhard Bar, GM 12-Bolt, Chevy C10, Kit

Part Number: QA1-R231-200

Not Yet Reviewed

Estimated Ship Date: Monday 11/3/2025

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Estimated Ship Date: Monday 11/3/2025

Rear Suspension Package, 0-6.00 in. drop, Includes C-notch. Firm Ride, Single Adjustable. C10, 63-72

Part Number: QA1-R110-250

Not Yet Reviewed

Estimated Ship Date: Monday 11/3/2025

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Estimated Ship Date: Monday 11/3/2025

Rear Suspension System, Adjustable, Double Adjustable Coilover, 200 lbs./in., Torque Arm, Panhard Bar, Ford 9 in., Chevy C10, Kit

Part Number: QA1-R232-200

Not Yet Reviewed

Estimated Ship Date: Monday 11/3/2025

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Estimated Ship Date: Monday 11/3/2025

Rear Suspension System, Adjustable, Single Adjustable Coilover, 200 lbs./in., Torque Arm, Panhard Bar, Ford 9 in., Chevy C10, Kit

Part Number: QA1-R132-200

Not Yet Reviewed

Estimated Ship Date: Monday 11/3/2025

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Estimated Ship Date: Monday 11/3/2025

Rear Suspension System, Adjustable, Single Adjustable Coilover, 170 lbs./in., Torque Arm, Panhard Bar, GM 10-Bolt, Chevy C10, Kit

Part Number: QA1-R130-170

Not Yet Reviewed

Estimated Ship Date: Monday 11/3/2025

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Estimated Ship Date: Monday 11/3/2025

Rear Suspension System, Adjustable, Single Adjustable Coilover, 250 lbs./in., Torque Arm, Panhard Bar, GM 12-Bolt, Chevy C10, Kit

Part Number: QA1-R131-250

Not Yet Reviewed

Estimated Ship Date: Monday 11/3/2025

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Estimated Ship Date: Monday 11/3/2025

Rear Suspension Package, Double Adjustable, Firm Ride. C10, 63-72

Part Number: QA1-RCK52617

Not Yet Reviewed

Estimated Ship Date: Dec 1, 2025 if ordered today

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Estimated Ship Date: Dec 1, 2025 if ordered today

Rear Suspension System, Adjustable, Double Adjustable Coilover, 250 lbs./in., Torque Arm, Panhard Bar, Ford 9 in., Chevy C10, Kit

Part Number: QA1-R232-250

Not Yet Reviewed

Estimated Ship Date: Monday 11/3/2025

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Estimated Ship Date: Monday 11/3/2025

Rear Suspension System, Adjustable, Double Adjustable Coilover, 170 lbs./in., Torque Arm, Panhard Bar, GM 10-Bolt, Chevy C10, Kit

Part Number: QA1-R230-170

Not Yet Reviewed

Estimated Ship Date: Monday 11/3/2025

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Estimated Ship Date: Monday 11/3/2025

Rear Suspension System, Adjustable, Double Adjustable Coilover, 250 lbs./in., Torque Arm, Panhard Bar, GM 12-Bolt, Chevy C10, Kit

Part Number: QA1-R231-250

Not Yet Reviewed

Estimated Ship Date: Monday 11/3/2025

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Estimated Ship Date: Monday 11/3/2025

Rear Suspension System, Adjustable, Double Adjustable Coilover, 170 lbs./in., Torque Arm, Panhard Bar, GM 12-Bolt, Chevy C10, Kit

Part Number: QA1-R231-170

Not Yet Reviewed

Estimated Ship Date: Monday 11/3/2025

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Estimated Ship Date: Monday 11/3/2025

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