Chassis & Suspension
Availability
Welcome to the home of great handling and ride quality! We stock a huge assortment of car and truck chassis and suspension parts like shocks, struts, and coil and leaf...
Welcome to the home of great handling and ride quality! We stock a huge assortment of car and truck chassis and suspension parts like shocks, struts, and coil and leaf springs, so whether you want a smooth street ride, responsive race handling, or rugged off-road control, you can find all the parts you need for your suspension upgrades here. We have complete lowering kits for a road-hugging sport stance, and lift kits to accommodate massive tires and greater suspension travel. Summit also has steering components, sway bars, frame rails and connectors, tie rods, wheelie bars, and wheel tubs, plus engine, transmission, and...
Welcome to the home of great handling and ride quality! We stock a huge assortment of car and truck chassis and suspension parts like shocks, struts, and coil and leaf springs, so whether you want a smooth street ride, responsive race handling, or rugged off-road control, you can find all the parts you need for your suspension upgrades here. We have complete lowering kits for a road-hugging sport stance, and lift kits to accommodate massive tires and greater suspension travel. Summit also has steering components, sway bars, frame rails and connectors, tie rods, wheelie bars, and wheel tubs, plus engine, transmission, and suspension mounts and bushings.
Showing In Stock Items. Show All 416 Items.
Coilover Kits, Proma Star Double Adjustable Coilover Systems, Front, Adjustable Valving, Twin-tube, 200 lbs./in. Rate Springs, Ford, Pair
Part Number: QA1-HD03-12200
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Coilover Kits, Proma Star Double Adjustable Coilover Systems, Front, Adjustable Valving, Twin-tube, 200 lbs./in. Rate Springs, Ford, Pair
Part Number: QA1-HD01-12200
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Coilover Kits, Proma Star Double Adjustable Coilover Systems, Front, Adjustable Valving, Twin-tube, 150 lbs./in. Rate Springs, Ford, Pair
Part Number: QA1-HD03-14150
Not Yet Reviewed
Estimated Ship Date: Jan 27, 2026 if ordered today
Estimated Ship Date: Jan 27, 2026 if ordered today
Need It Sooner? We recommend these similar substitute parts:
Not Yet Reviewed
Estimated Ship Date: Today
Coilover Kits, Proma Star Double Adjustable Coilover Systems, Front, Adjustable Valving, Twin-tube, 300 lbs./in. Rate Springs, Ford, Pair
Part Number: QA1-HD01-12300
Not Yet Reviewed
Estimated Ship Date: Jan 28, 2026 if ordered today
Estimated Ship Date: Jan 28, 2026 if ordered today
Coilover Kits, Proma Star Double Adjustable Coilover Systems, Front, Adjustable Valving, Twin-tube, 150 lbs./in. Rate Springs, Ford, Pair
Part Number: QA1-HD02-14150
Not Yet Reviewed
Estimated Ship Date: Jan 28, 2026 if ordered today
Estimated Ship Date: Jan 28, 2026 if ordered today
Need It Sooner? We recommend these similar substitute parts:
Not Yet Reviewed
Estimated Ship Date: Today
Coilover Kits, Proma Star Double Adjustable Coilover Systems, Front, Adjustable Valving, Twin-tube, 200 lbs./in. Rate Springs, Ford, Pair
Part Number: QA1-HD02-12200
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Coilover Kits, Proma Star Double Adjustable Coilover Systems, Front, Adjustable Valving, Twin-tube, 300 lbs./in. Rate Springs, Ford, Pair
Part Number: QA1-HD03-12300
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Coilover Kits, Proma Star Double Adjustable Coilover Systems, Front, Adjustable Valving, Twin-tube, 150 lbs./in. Rate Springs, Ford, Pair
Part Number: QA1-HD01-14150
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Coilover Kits, Proma Star Double Adjustable Coilover Systems, Front, Adjustable Valving, Twin-tube, 300 lbs./in. Rate Springs, Ford, Pair
Part Number: QA1-HD02-12300
Not Yet Reviewed
Estimated Ship Date: Jan 28, 2026 if ordered today
Estimated Ship Date: Jan 28, 2026 if ordered today
Coilover Kits, N1 Street Sport, 180mm Springs, Monotube Shocks, Adjustible Valving, BMW, Kit
Part Number: ISN-ISC-B005-4-S
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Coilover Kits, Proma Star Double Adjustable Coilover Systems, Rear, Twin-tube Shocks, Eyelet Mounts, 130 lbs./in. Spring Rate, Ford, Pair
Part Number: QA1-RCK52406
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Coilover Kits, Proma Star Double Adjustable Coilover Systems, Front, Twin-tube, 170 lbs./in. Rate Springs, Chevrolet, Pontiac, Pair
Part Number: QA1-HD06-12170
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Coilover Kits, Proma Star Double Adjustable Coilover Systems, Rear, Twin-tube Shocks, 450 lbs./in. Spring Rate, Chevrolet, Pair
Part Number: QA1-RCK52470
Estimated Ship Date: Today
Estimated Ship Date: Today
Coilover Kits, Proma Star Double Adjustable Coilover, Front, Twin-tube Shocks, 450 lbs./in. Rate Springs, 1.0-2.0 in. Lowered Front, Chevrolet, Pair
Part Number: QA1-GD455-08450
Estimated Ship Date: Today
Estimated Ship Date: Today
Coilover Kits, Proma Star Double Adjustable Coilover Systems, Rear, Twin-tube Shocks, Eyelet Mounts, 175 lbs./in. Spring Rate, Ford, Pair
Part Number: QA1-RCK52407
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Coilover Kits, Proma Star Double Adjustable Coilover Systems, Front, Twin-tube, 150 lbs./in. Rate Springs, Ford, Pair
Part Number: QA1-HD05-14150
Not Yet Reviewed
Estimated Ship Date: Jan 28, 2026 if ordered today
Estimated Ship Date: Jan 28, 2026 if ordered today
Coilover Kits, Proma Star Double Adjustable Coilover Systems, Front, Twin-tube, 350 lbs./in. Rate Springs, Chevrolet, Pontiac, Pair
Part Number: QA1-HD06-10350
Not Yet Reviewed
Estimated Ship Date: Jan 26, 2026 if ordered today
Estimated Ship Date: Jan 26, 2026 if ordered today
Coilover Kits, Proma Star Double Adjustable Coilover Systems, Front, Twin-tube, 250 lbs./in. Rate Springs, Chevrolet, Pontiac, Pair
Part Number: QA1-HD06-12250
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Coilover Kits, Proma Star Double Adjustable Coilover Systems, Front, Twin-tube, 200 lbs./in. Rate Springs, Ford, Pair
Part Number: QA1-HD05-12200
Not Yet Reviewed
Estimated Ship Date: Jan 28, 2026 if ordered today
Estimated Ship Date: Jan 28, 2026 if ordered today
Coilover Kits, Rear MOD Coilover Conversion Systems, Rear, Twin-tube Shocks, 550 lbs./in. Spring Rate, Chevrolet, Pair
Part Number: QA1-RCK52474
Not Yet Reviewed
Estimated Ship Date: Jan 28, 2026 if ordered today
Estimated Ship Date: Jan 28, 2026 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: Jan 28, 2026 if ordered today
Estimated Ship Date: Jan 28, 2026 if ordered today
Coilover Kit, MOD Coilover System, Rear, Double Adjustable, 175 lbs./in. Spring Rate, Buick, Chevy, GMC, Oldsmobile, Pontiac, Kit
Part Number: QA1-RCK52442
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Coilover Kit, N1, Lowered, Front and Rear, Monotube, Aluminum Body, Black Anodized, Black Powdercoated Springs, for Nissan, Kit
Part Number: ISN-ISC-N010-S
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Coilover Kit, N1, Lowered, Front and Rear, Monotube, Aluminum Body, Black Anodized, Black Powdercoated Springs, BMW, Kit
Part Number: ISN-ISC-B013-1-S
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Coilover Kit, N1, Lowered, Front and Rear, Monotube, Aluminum Body, Black Anodized, Black Powdercoated Springs, for Nissan, Kit
Part Number: ISN-ISC-N009-S
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
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