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...

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UMI Performance GM A-Body LSX Engine Mounts 4008-B

UMI Performance GM A-Body LSX Engine Mounts 4008-B

Motor Mounts, Complete Mount, Engine Swap, LS, Bolt-In, Steel, Black Powdercoated, Buick, Chevy, GMC, Oldsmobile, Pontiac, Kit

Part Number: UPI-4008-B

4.29 out of 5 stars ( 14 )

Estimated Ship Date: Today

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Ridetech Streetgrip Coil Springs 11162350

Coil Springs, StreetGrip, Front, Blue Powdercoated, Chevy Camaro, Small Block or LS Swap, Pair

Part Number: ART-11162350

2.67 out of 5 stars ( 3 )

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Ridetech Motor Mounts 11169512

Engine Mount Brackets, Steel, Black, LS Engine Swap, RideTech F-body Subframe, Pair.

Part Number: ART-11169512

Not Yet Reviewed

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Detroit Speed Lowering Springs 041804PDS

67-72 A-Body Coil Spring Kit SBC, BBC, LS 1" Drop Each

Part Number: DSR-041804PDS

Not Yet Reviewed

Estimated Ship Date: Apr 29, 2026 if ordered today

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Estimated Ship Date: Apr 29, 2026 if ordered today

Detroit Speed Lowering Springs 041802PDS

64-66 A-Body Coil Spring Kit SBC, BBC, LS 1.25" Drop - 1.5" Drop Each

Part Number: DSR-041802PDS

Not Yet Reviewed

Estimated Ship Date: Apr 29, 2026 if ordered today

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Estimated Ship Date: Apr 29, 2026 if ordered today

Helix Coilover Conversion Kits HEXCCCGM35023002

Coilover Kit, Front and Rear, Non-Adjustable, Monotube, 500 lbs./in. Front, 180-230 lbs./in. Rear, Buick, Chevy, Oldsmobile, Pontiac, Kit

Part Number: HLI-787825

Not Yet Reviewed

Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today

UMI Performance Stock Height Springs 4049F

Coil Springs, Stock Height, Front, 15.625 in. Free Length, 550 lbs. Rate, 850 lbs.at 13.875 in., Black, Buick, Chevrolet, Oldsmobile, Pontiac, Pair

Part Number: UPI-4049F

4.8 out of 5 stars ( 10 )

Estimated Ship Date: Today

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UMI Performance Stock Height Springs 4049

Stock Height Springs, Coil, Buick, Chevrolet, Oldsmobile, Pontiac, Front/Rear, Set of 4

Part Number: UPI-4049

3.83 out of 5 stars ( 12 )

Estimated Ship Date: Today

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QA1 C10 Crossmember Engine Mounts for 1975-1986 C10, 1963-1974 C10 PICKUP, 1987 R10 - 7740-374

Engine Mount, C10 Crossmember, Complete Mount, Bolt-In, Steel, Natural, Chevy, Engine Swap, Kit

Part Number: QA1-7740-374

1.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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UMI Performance Stock Height Springs 4049R

Stock Height Springs, Coil, Buick, Chevrolet, Oldsmobile, Pontiac, Rear, Pair

Part Number: UPI-4049R

4.86 out of 5 stars ( 7 )

Estimated Ship Date: Today

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UMI Performance Stock Height Springs 4048

Stock Height Springs, Coil, Buick, Chevrolet, Oldsmobile, Pontiac, Front/Rear, Set of 4

Part Number: UPI-4048

4.33 out of 5 stars ( 3 )

Estimated Ship Date: Today

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QA1 C10 Crossmember Engine Mounts for 1967-1972 C10 PICKUP - 7740-376

Engine Mount, C10 Crossmember, Complete Mount, Bolt-In, Steel, Natural, Chevy, Engine Swap, Kit

Part Number: QA1-7740-376

3.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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UMI Performance GM A-Body LSX Engine Mounts 4008-R

Motor Mounts, Complete Mount, Bolt-In, Steel, Red Powdercoated, Buick, Chevy, GMC, Oldsmobile, Pontiac, V8, LSX, Kit

Part Number: UPI-4008-R

4.75 out of 5 stars ( 4 )

Estimated Ship Date: Today

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QA1 C10 Crossmember Engine Mounts for 1975-1986 C10, 1963-1974 C10 PICKUP - 7740-375

Engine Mount, C10 Crossmember, Complete Mount, Bolt-In, Steel, Natural, Chevy, Engine Swap, Kit

Part Number: QA1-7740-375

Not Yet Reviewed

Estimated Ship Date: Today

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UMI Performance Stock Height Springs 4048R

Stock Height Springs, Coil, Buick, Chevrolet, Oldsmobile, Pontiac, Rear, Pair

Part Number: UPI-4048R

4.14 out of 5 stars ( 7 )

Estimated Ship Date: Today

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Lares New Power Steering Pumps 13154

Power Steering Pump, New, Saginaw P Series, w/Reservoir, 3/8 in. Hose Barb Inlet, 5/8 in.-18 Female Inverted Flare Outlet, Keyway, Black, Each

Part Number: LSC-13154

3.93 out of 5 stars ( 27 )

Estimated Ship Date: Today

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QA1 C10 Crossmember Engine Mounts for 1975-1986 C10, 1963-1974 C10 PICKUP - 7740-379

Engine Mount, C10 Crossmember, Complete Mount, Bolt-In, Steel, Natural, Chevy, DIY, Engine Swap, Kit

Part Number: QA1-7740-379

Not Yet Reviewed

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Lares New Power Steering Pumps 13153

Power Steering Pump, New, Saginaw Style, Integral Reservoir, 3/8 in. Male Hose Barb Inlet, 5/8 in.-18 Female Inverted Flare Outlet, Chrome Finish,Each

Part Number: LSC-13153

4.0 out of 5 stars ( 32 )

Estimated Ship Date: Today