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Car & Truck Chassis & Suspension Parts
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.
AVENGER BASE VALVE TOOL
Part Number: ISS-31045012
Not Yet Reviewed
Estimated Ship Date: Feb 27, 2026 if ordered today
Estimated Ship Date: Feb 27, 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-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, 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, 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-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, 300 lbs./in. Rate Springs, Ford, Pair
Part Number: QA1-HD01-12300
Not Yet Reviewed
Estimated Ship Date: Mar 12, 2026 if ordered today
Estimated Ship Date: Mar 12, 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-HD03-14150
Not Yet Reviewed
Estimated Ship Date: Mar 13, 2026 if ordered today
Estimated Ship Date: Mar 13, 2026 if ordered today
Need It Sooner? We recommend these similar substitute parts:
QA1 Proma Star Double Adjustable Coilover Systems for 1994-2004 MUSTANG - HD03-12200
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-HD02-12300
Not Yet Reviewed
Estimated Ship Date: Mar 12, 2026 if ordered today
Estimated Ship Date: Mar 12, 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: Mar 13, 2026 if ordered today
Estimated Ship Date: Mar 13, 2026 if ordered today
Need It Sooner? We recommend these similar substitute parts:
QA1 Proma Star Double Adjustable Coilover Systems for 1979-1989 MUSTANG - HD01-14150
Not Yet Reviewed
Estimated Ship Date: 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, N1 Street Sport, 180mm Front Springs, 180mm Rear Springs, Monotube Shocks, Adjustible Valving, BMW, Kit
Part Number: ISN-ISC-B006-1-S
Not Yet Reviewed
Estimated Ship Date: Feb 26, 2026 if ordered today
Estimated Ship Date: Feb 26, 2026 if ordered today
Coilover Kits, N1 Street Sport, 135mm Front Springs, 220mm Rear Springs, Monotube Shocks, Adjustible Valving, BMW, Kit
Part Number: ISN-ISC-B005-T
Not Yet Reviewed
Estimated Ship Date: Feb 26, 2026 if ordered today
Estimated Ship Date: Feb 26, 2026 if ordered today
Coilover Kits, N1 Street Sport, 135mm Front Springs, 200mm Rear Springs, Monotube Shocks, Adjustible Valving, BMW, Kit
Part Number: ISN-ISC-B006-S
Not Yet Reviewed
Estimated Ship Date: Feb 26, 2026 if ordered today
Estimated Ship Date: Feb 26, 2026 if ordered today
Coilover Kits, N1 Street Sport, 135mm Front Springs, 270mm Rear Springs, Monotube Shocks, Adjustible Valving, BMW, Kit
Part Number: ISN-ISC-B005-S
Not Yet Reviewed
Estimated Ship Date: Mar 19, 2026 if ordered today
Estimated Ship Date: Mar 19, 2026 if ordered today
Coilover Kits, N1 Track/Race, 180mm Front Springs, 160mm Rear Springs, Monotube Shocks, Adjustible Valving, BMW, Kit
Part Number: ISN-ISC-B006-1-T
Not Yet Reviewed
Estimated Ship Date: Mar 19, 2026 if ordered today
Estimated Ship Date: Mar 19, 2026 if ordered today
Coilover Kits, N1 Race/Track, 135mm Front Springs, 200mm Rear Springs, Monotube Shocks, Adjustible Valving, BMW, Kit
Part Number: ISN-ISC-B006-T
Not Yet Reviewed
Estimated Ship Date: Mar 19, 2026 if ordered today
Estimated Ship Date: Mar 19, 2026 if ordered today
Coilover Kits, N1 Street Sport, 180mm Front Springs, 180mm Rear Springs, Monotube Shocks, Adjustible Valving, BMW, Kit
Part Number: ISN-ISC-B007-S
Not Yet Reviewed
Estimated Ship Date: Mar 19, 2026 if ordered today
Estimated Ship Date: Mar 19, 2026 if ordered today
Coilover Kits, N1 Street Sport, 130mm Front Springs, 160mm Rear Springs, Monotube Shocks, Adjustible Valving, MINI, Kit
Part Number: ISN-ISC-B010-S
Not Yet Reviewed
Estimated Ship Date: Feb 26, 2026 if ordered today
Estimated Ship Date: Feb 26, 2026 if ordered today
Coilover Kits, N1 Track/Race, 130mm Front Springs, 160mm Rear Springs, Monotube Shocks, Adjustible Valving, MINI, Kit
Part Number: ISN-ISC-B010-T
Not Yet Reviewed
Estimated Ship Date: Feb 26, 2026 if ordered today
Estimated Ship Date: Feb 26, 2026 if ordered today
Coilover Kits, N1 Street Sport, 180mm Springs, Monotube Shocks, Adjustible Valving, BMW, Kit
Part Number: ISN-ISC-B001-S
Not Yet Reviewed
Estimated Ship Date: Feb 26, 2026 if ordered today
Estimated Ship Date: Feb 26, 2026 if ordered today
Coilover Kits, N1 Track/Race, 180mm Springs, Monotube Shocks, Adjustible Valving, BMW, Kit
Part Number: ISN-ISC-B001-T
Not Yet Reviewed
Estimated Ship Date: Feb 26, 2026 if ordered today
Estimated Ship Date: Feb 26, 2026 if ordered today
Coilover Kits, N1 Street Sport, 180mm Front Springs, 200mm Rear Springs, Monotube Shocks, Adjustible Valving, BMW, Kit
Part Number: ISN-ISC-B006-3-S
Not Yet Reviewed
Estimated Ship Date: Feb 26, 2026 if ordered today
Estimated Ship Date: Feb 26, 2026 if ordered today
Coilover Kits, N1 Track/Race, 180mm Front Springs, 160mm Rear Springs, Monotube Shocks, Adjustible Valving, BMW, Kit
Part Number: ISN-ISC-B006-3-T
Not Yet Reviewed
Estimated Ship Date: Feb 26, 2026 if ordered today
Estimated Ship Date: Feb 26, 2026 if ordered today
Coilover Kits, N1 Street Sport, 135mm Front Springs, 140mm Rear Springs, Monotube Shocks, Adjustible Valving, BMW, Kit
Part Number: ISN-ISC-B008-S
Not Yet Reviewed
Estimated Ship Date: Feb 26, 2026 if ordered today
Estimated Ship Date: Feb 26, 2026 if ordered today
