1990 Coilover Kits - 300 lbs./in. Spring Rate (lbs./in.) - In Stock Filter Options - Vendor In Stock Filter Options - Free Shipping on Orders Over $109 at Summit Racing

QA1 Rear Pro Coilover Conversion Systems RCK52385

Coilover Kit, Pro Coilover System, Rear, Single Adjustable, 300 lbs./in. Spring Rate, Buick, Chevy, Oldsmobile, Pontiac, Kit

Part Number: QA1-RCK52385

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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QA1 Rear Pro Coilover Conversion Systems RCK52381

Coilover Kit, Pro Coilover System, Rear, Double Adjustable, 300 lbs./in. Spring Rate, Buick, Chevy, Oldsmobile, Pontiac, Kit

Part Number: QA1-RCK52381

Not Yet Reviewed

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QA1 Pro Coilover Systems GS401-11300C

Coilover Kit, Pro Coilover System, Front, Single Adjustable, Buick, Chevy, GMC, Oldsmobile, Pontiac, Pair

Part Number: QA1-GS401-11300C

5.0 out of 5 stars ( 1 )

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QA1 Pro Coilover Systems GD507-11300C

Coilover Kit, Pro Coilover System, Front, Double Adjustable, Buick, Chevy, Oldsmobile, Pontiac, Pair

Part Number: QA1-GD507-11300C

Not Yet Reviewed

Estimated Ship Date: Apr 6, 2026 if ordered today

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Estimated Ship Date: Apr 6, 2026 if ordered today

QA1 Rear MOD Coilover Conversion Systems RCK52465

Coilover Kits, Rear MOD Coilover Conversion Systems, Rear, Twin-tube Shocks, Eyelet Mounts, 300 lbs./in. Spring Rate, Buick, Chevy, Olds, Pontiac, Kit

Part Number: QA1-RCK52465

Not Yet Reviewed

Estimated Ship Date: Apr 6, 2026 if ordered today

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Estimated Ship Date: Apr 6, 2026 if ordered today