Availability
Coilover Spring, High Travel, 250 lbs./in. Rate, 12 in. Length, 2.50 in. I.D., Black Powdercoated, Each
Part Number: QA1-12HT250B
Estimated Ship Date: Monday 11/17/2025
Estimated Ship Date: Monday 11/17/2025
Coilover Shock, Proma Star, Double-Adjustable, Aluminum Body, Clear Anodized, Twin-Tube, 17.000 in. Extended, 11.625 in. Collapsed, Each
Part Number: QA1-DD509
Not Yet Reviewed
Estimated Ship Date: Monday 11/17/2025
Estimated Ship Date: Monday 11/17/2025
Coilover Spring, Pro, Flat Style, 600 lbs./in. Rate, 10 in. Length, 3.50/2.50 in. I.D., Silver Powdercoated, Each
Part Number: QA1-10HTSF600
Estimated Ship Date: Monday 11/17/2025
Estimated Ship Date: Monday 11/17/2025
Coilover Kits, Rear Pro Conversion System, Non-Adjustable, Aluminum, Clear Anodized Shocks, Silver Powdercoated Springs, 175-350 lbs./in. Rate, Kit
Part Number: QA1-ALN4000K
Estimated Ship Date: Monday 11/17/2025
Estimated Ship Date: Monday 11/17/2025
Coilover Kits, Rear Pro Conversion System, Single-Adjustable, Aluminum, Clear Anodized Shocks, Silver Powdercoated Springs, 100-200 lbs./in. Rate, Kit
Part Number: QA1-DS501-12100V
Estimated Ship Date: Monday 11/17/2025
Estimated Ship Date: Monday 11/17/2025
Coilover Kit, Pro Coilover System, Rear, Double Adjustable, 170 lbs./in. Spring Rate, Buick, Chevy, Oldsmobile, Pontiac, Kit
Part Number: QA1-RCK52355
Estimated Ship Date: Dec 3, 2025 if ordered today
Estimated Ship Date: Dec 3, 2025 if ordered today
Coilover Kits, Proma Star Single Adjustable Coilover Systems, Rear, Twin-tube Shocks, Eyelet Mounts, 95 lbs./in. Spring Rate, Ford, Pair
Part Number: QA1-RCK52401
Not Yet Reviewed
Estimated Ship Date: Dec 3, 2025 if ordered today
Estimated Ship Date: Dec 3, 2025 if ordered today
Coilover Kits, Proma Star Double Adjustable Coilover Systems, Rear, Twin-tube Shocks, Eyelet Mounts, 95 lbs./in. Spring Rate, Ford, Pair
Part Number: QA1-RCK52405
Not Yet Reviewed
Estimated Ship Date: Dec 3, 2025 if ordered today
Estimated Ship Date: Dec 3, 2025 if ordered today
Coilover Kit, Pro Coilover System, Front, Double Adjustable, Buick, Chevy, GMC, Oldsmobile, Pontiac, Pair
Part Number: QA1-GD401-10650C
Not Yet Reviewed
Estimated Ship Date: Dec 3, 2025 if ordered today
Estimated Ship Date: Dec 3, 2025 if ordered today
Coilover Kits, Rear Pro Conversion System, Double-Adjustable, Aluminum, Clear Anodized Shocks, Silver Powdercoated Springs, 150 lbs./in. Rate, Kit
Part Number: QA1-DD501-12150
Not Yet Reviewed
Estimated Ship Date: Dec 3, 2025 if ordered today
Estimated Ship Date: Dec 3, 2025 if ordered today
Need It Sooner? We recommend these similar substitute parts:
Coilover Kit, Mustang II Coilover System, Front, Single Adjustable, Ford, Pair
Part Number: QA1-MS301-08700
Estimated Ship Date: Dec 3, 2025 if ordered today
Estimated Ship Date: Dec 3, 2025 if ordered today
Coilover Kits, Rear Pro Coilover Conversion Systems, Adjustable, Twin-tube Shocks, Eyelet Mounts, Buick, Chevrolet, Oldsmobile, Pontiac, Kit
Part Number: QA1-RCK52365
Not Yet Reviewed
Estimated Ship Date: Dec 2, 2025 if ordered today
Estimated Ship Date: Dec 2, 2025 if ordered today
Coilover Kit, Pro Coilover System, Rear, Double Adjustable, 200 lbs./in. Spring Rate, Buick, Chevy, Oldsmobile, Pontiac, Kit
Part Number: QA1-RCK52379
Not Yet Reviewed
Estimated Ship Date: Dec 2, 2025 if ordered today
Estimated Ship Date: Dec 2, 2025 if ordered today
Coilover Kits, Proma Star Single Adjustable Coilover Systems, Front, Twin-tube Shocks, 200 lbs./in. Spring Rate, Black, Ford, Pair
Part Number: QA1-HS05-12200
Not Yet Reviewed
Estimated Ship Date: Dec 2, 2025 if ordered today
Estimated Ship Date: Dec 2, 2025 if ordered today
Coilover Kit, Pro Coilover System, Front, Double Adjustable, Ford, Pair
Part Number: QA1-MD401-10350C
Not Yet Reviewed
Estimated Ship Date: Dec 3, 2025 if ordered today
Estimated Ship Date: Dec 3, 2025 if ordered today
Coilover Kit, Mustang II Coilover System, Front, Double Adjustable, Ford, Pair
Part Number: QA1-MD303-08375
Not Yet Reviewed
Estimated Ship Date: Dec 3, 2025 if ordered today
Estimated Ship Date: Dec 3, 2025 if ordered today
Coilover Kits, Rear HD Pro Coilover Conversion System, Adjustable Valving, 250 lbs./in. Rate Springs, Designed for 3.00 in. Axle Tubes, Kit
Part Number: QA1-DD501-12250
Not Yet Reviewed
Estimated Ship Date: Dec 3, 2025 if ordered today
Estimated Ship Date: Dec 3, 2025 if ordered today
Coilover Kits, Rear Pro Conversion System, Single-Adjustable, Aluminum, Clear Anodized Shocks, Silver Powdercoated Springs, 130 lbs./in. Rate, Kit
Part Number: QA1-DS501-1301
Not Yet Reviewed
Estimated Ship Date: Dec 3, 2025 if ordered today
Estimated Ship Date: Dec 3, 2025 if ordered today
Coilover ADJUSTER KIT
Part Number: QA1-CK6201
Not Yet Reviewed
Estimated Ship Date: Monday 11/17/2025
Estimated Ship Date: Monday 11/17/2025
Coilover Components, Hardware Kit, Designed for Use with QA1 8Q Series Shocks, Kit
Part Number: QA1-CK8Q00
Not Yet Reviewed
Estimated Ship Date: Monday 11/17/2025
Estimated Ship Date: Monday 11/17/2025
Shock Bearing, Coilover, Steel, Roller Thrust Bearing, 39.3mm OD, 25.5mm ID, Each
Part Number: QA1-9010-101
Estimated Ship Date: Monday 11/17/2025
Estimated Ship Date: Monday 11/17/2025
Coilover Shock, Proma Star, Rear, Twin-Tube, Double Adjustable, Eyelet/Eyelet, Pair
Part Number: QA1-RCK52334
Not Yet Reviewed
Estimated Ship Date: Dec 3, 2025 if ordered today
Estimated Ship Date: Dec 3, 2025 if ordered today
Coilover Components, Hardware Kit, for the 6Q Series of Shocks with 2.50 in. I.D. Spring with Bump Stops, for One Shock, Kit
Part Number: QA1-CK6Q01
Not Yet Reviewed
Estimated Ship Date: Dec 3, 2025 if ordered today
Estimated Ship Date: Dec 3, 2025 if ordered today
Coilover Components, Seal Kit, Monotube, 16/26/27/28 Series, Kit
Part Number: QA1-RK12
Not Yet Reviewed
Estimated Ship Date: Dec 4, 2025 if ordered today
Estimated Ship Date: Dec 4, 2025 if ordered today
Coilover Spring, High Travel, 220 lbs./in. Rate, 9 in. Length, 2.50 in. I.D., Black Powdercoated, Each
Part Number: QA1-9HT220B
Not Yet Reviewed
Estimated Ship Date: Monday 11/17/2025
Estimated Ship Date: Monday 11/17/2025
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