QA1 Rear Suspension Conversion Systems

4.53 out of 5 stars 19 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.

Showing In Stock Items. Show All 14 Items.

Results 1 - 14 of 14

QA1 Rear Suspension Conversion Systems R110-200

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 1/12/2026

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Estimated Ship Date: Monday 1/12/2026

QA1 Rear Suspension Conversion Systems R210-200

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 1/12/2026

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Estimated Ship Date: Monday 1/12/2026

QA1 Rear Suspension Conversion Systems RCK52612

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

Part Number: QA1-RCK52612

Not Yet Reviewed

Estimated Ship Date: Monday 1/12/2026

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Estimated Ship Date: Monday 1/12/2026

QA1 Rear Suspension Conversion Systems R210-250

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 1/12/2026

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Estimated Ship Date: Monday 1/12/2026

QA1 Rear Suspension Conversion Systems R110-170

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

Part Number: QA1-R110-170

3.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 1/12/2026

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Estimated Ship Date: Monday 1/12/2026

QA1 Rear Suspension Conversion Systems R210-170

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 1/12/2026

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Estimated Ship Date: Monday 1/12/2026

QA1 Rear Suspension Conversion Systems R110-250

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 1/12/2026

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Estimated Ship Date: Monday 1/12/2026

QA1 Rear Suspension Conversion Systems RCK52616

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

Part Number: QA1-RCK52616

Not Yet Reviewed

Estimated Ship Date: Monday 1/12/2026

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Estimated Ship Date: Monday 1/12/2026

QA1 Rear Suspension Conversion Systems RCK52617

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

Part Number: QA1-RCK52617

Not Yet Reviewed

Estimated Ship Date: Jan 28, 2026 if ordered today

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Estimated Ship Date: Jan 28, 2026 if ordered today

QA1 Rear Suspension Conversion Systems RCK52614

Rear Suspension Package, Double Adjustable, No Springs. C10, 63-72

Part Number: QA1-RCK52614

Not Yet Reviewed

Estimated Ship Date: Jan 28, 2026 if ordered today

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Estimated Ship Date: Jan 28, 2026 if ordered today

QA1 Rear Suspension Conversion Systems RCK52611

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

Part Number: QA1-RCK52611

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Jan 28, 2026 if ordered today

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Estimated Ship Date: Jan 28, 2026 if ordered today

QA1 Rear Suspension Conversion Systems RCK52615

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

Part Number: QA1-RCK52615

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 1/12/2026

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Estimated Ship Date: Monday 1/12/2026

QA1 Rear Suspension Conversion Systems RCK52610

Rear Suspension Package, Single Adjustable, No Springs. C10, 63-72

Part Number: QA1-RCK52610

Not Yet Reviewed

Estimated Ship Date: Jan 28, 2026 if ordered today

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Estimated Ship Date: Jan 28, 2026 if ordered today

QA1 Rear Suspension Conversion Systems RCK52613

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

Part Number: QA1-RCK52613

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Jan 28, 2026 if ordered today

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Estimated Ship Date: Jan 28, 2026 if ordered today

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