1978 UMI Performance Chassis & Suspension - In Stock Filter Options - Vendor In Stock Filter Options - Free Shipping on Orders Over $109 at Summit Racing

UMI Performance Front Adjustable Upper A-Arms 3056-2-B

UMI Performance Front Adjustable Upper A-Arms 3056-2-B

Front Upper A-arms, Adjustable, 1/2" Taller Ball Joints

Part Number: UPI-3056-2-B

4.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 3/2/2026 if shipped by air

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Estimated Ship Date: Monday 3/2/2026 if shipped by air

UMI Performance Lowering Springs 3051F

Lowering Springs, Front, Coil Type, 2.00 in. Lowered Range, Buick, Chevrolet, Oldsmobile, Pontiac, Pair

Part Number: UPI-3051F

4.36 out of 5 stars ( 11 )

Estimated Ship Date: Monday 3/2/2026 if shipped by air

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Estimated Ship Date: Monday 3/2/2026 if shipped by air

UMI Performance Sway Bar Brackets 6444

Sway Bar Brackets, Steel, Black, Front, Stock Height, Chevy, GMC, Pair

Part Number: UPI-6444

Not Yet Reviewed

Estimated Ship Date: Monday 3/2/2026 if shipped by air

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Estimated Ship Date: Monday 3/2/2026 if shipped by air

UMI Performance Extended Length Lower Control Arms for 1978-1996 CAPRICE, 1994-1996 IMPALA - 3621-B

Control Arms, Extended Length Rear Lower, Boxed, Steel, Black, Polyurethane Bushings, Chevy, Pair

Part Number: UPI-3621-B

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 Competition Front End Kits 3059-3-B

Front End Kit, Competition, 1978-88 GM G-Body, 1982-2003 S10/S15, Black Control Arms, Coilovers, 650 lbs. Springs, Street, Kit

Part Number: UPI-3059-3-B

Not Yet Reviewed

Estimated Ship Date: Monday 3/2/2026 if shipped by air

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Estimated Ship Date: Monday 3/2/2026 if shipped by air

UMI Performance Rear Non-Adjustable Upper and Lower Control Arm Kits 302116-B

A-Arms, Rear Upper, Non-Adjustable, Bushings, Black Powdercoated, Steel, Pair

Part Number: UPI-302116-B

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today

Need It Sooner? We recommend these similar substitute parts:

UMI Performance Rear Non-Adjustable Upper and Lower Control Arm Kits 301516-B

5 out of 5 stars ( 9 )

Estimated Ship Date: Monday 3/2/2026

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UMI Performance Front Sway Bars 4067-R

Sway Bars, Front, Solid, Steel, Red Powdercoated, 1.313 in. Diameter, Buick, Chevrolet, GMC, Oldsmobile, Pontiac, Kit

Part Number: UPI-4067-R

Not Yet Reviewed

Estimated Ship Date: Monday 3/2/2026 if shipped by air

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Estimated Ship Date: Monday 3/2/2026 if shipped by air

UMI Performance F-Body Frame Rail Braces for 1975-1981 CAMARO, FIREBIRD - 2658-B

Frame Rail Brace, Steel, Black Powdercoated, Chevy, Pontiac, Each

Part Number: UPI-2658-B

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 3/2/2026 if shipped by air

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Estimated Ship Date: Monday 3/2/2026 if shipped by air

UMI Performance Leaf Spring Front Mounts for 1970-1981 CAMARO, FIREBIRD - 2624-B

Leaf Spring Mount, Rear Spring Forward Mount, Steel, Black Powdercoated, Chevrolet, Pontiac, Kit

Part Number: UPI-2624-B

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 Heavy-Duty Engine Mounts for 1973-1981 CAMARO, 1977-1981 FIREBIRD - 90074

Motor Mounts, Block Mount, Bolt-In, Steel, Black Powdercoated, Chevy, Pontiac, Small Block, Pair

Part Number: UPI-90074

Not Yet Reviewed

Estimated Ship Date: Monday 3/2/2026 if shipped by air

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Estimated Ship Date: Monday 3/2/2026 if shipped by air

UMI Performance Rear Adjustable Upper and Non-Adjustable Lower Control Arm Kits 361517-B

Control Arms, Rear Upper/Lower, Tubular/Boxed, Bushings, Red Powdercoated, Steel, Kit

Part Number: UPI-361517-B

Not Yet Reviewed

Estimated Ship Date: Monday 3/2/2026 if shipped by air

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Estimated Ship Date: Monday 3/2/2026 if shipped by air

UMI Performance Leaf Spring Lowering Blocks for 1970-1981 CAMARO, FIREBIRD - 2621-1

Suspension Blocks, Leaf Spring Lower Blocks, GM F-Body, 0.75 in. Thick, Aluminum, Black Finish, includes U-bolts, Washers, Nuts, Chevy, Pontiac, Pair

Part Number: UPI-2621-1

Not Yet Reviewed

Estimated Ship Date: Monday 3/2/2026 if shipped by air

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Estimated Ship Date: Monday 3/2/2026 if shipped by air

UMI Performance Solid Rear Sway Bars for 1970-1981 CAMARO, FIREBIRD - 2635-B

Sway Bar, Rear, Steel, 3/4 in., Black Powdercoated, Solid Mounts and Endlinks, Chevy, Pontiac, Kit

Part Number: UPI-2635-B

Not Yet Reviewed

Estimated Ship Date: Monday 3/2/2026 if shipped by air

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Estimated Ship Date: Monday 3/2/2026 if shipped by air

UMI Performance GM G-Body LSX Engine Mounts 2406-B

Motor Mounts, Plate, Bolt-In, Steel, Black Powdercoated, Buick, Chevy, GMC, Oldsmobile, Pontiac, V8, LSX, Kit

Part Number: UPI-2406-B

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 3/2/2026 if shipped by air

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Estimated Ship Date: Monday 3/2/2026 if shipped by air

UMI Performance Front and Rear Sway Bar Kits 363534-B

Sway Bars, Steel, Black, Front 1 3/8 in./Rear 1 1/8 in. Diameters, Polyurethane Bushings, Chevy, Kit

Part Number: UPI-363534-B

2.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 3/2/2026 if shipped by air

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Estimated Ship Date: Monday 3/2/2026 if shipped by air

UMI Performance Rear Drag Sway Bars 3045-300-R

Sway Bar, Drag, Rear, Red Powdercoated, 1 3/8 in. Diameter, Buick, Chevy, Oldsmobile, Pontiac, Kit

Part Number: UPI-3045-300-R

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 3/2/2026 if shipped by air

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Estimated Ship Date: Monday 3/2/2026 if shipped by air

UMI Performance Rear Non-Adjustable Upper Control Arms 3016-B

A-Arms, Rear Upper, Tubular, Black Powdercoated, Steel, Pair

Part Number: UPI-3016-B

4.75 out of 5 stars ( 4 )

Estimated Ship Date: Monday 3/2/2026 if shipped by air

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Estimated Ship Date: Monday 3/2/2026 if shipped by air

UMI Performance Rear Adjustable Upper and Non-Adjustable Lower Control Arm Kits 301517-B

A-Arms, Rear Upper/Lower, Tubular, Black Powdercoated, Steel, Kit

Part Number: UPI-301517-B

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 3/2/2026 if shipped by air

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Estimated Ship Date: Monday 3/2/2026 if shipped by air

UMI Performance Rear Adjustable Upper and Lower Control Arm Kits 501619-B

Control Arms, Rear Lower/Upper, Tubular, Black Powdercoated, Steel, Kit

Part Number: UPI-501619-B

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 3/2/2026 if shipped by air

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Estimated Ship Date: Monday 3/2/2026 if shipped by air

UMI Performance Front Sway Bars 3668-R

Sway Bar, Front, Fixed Type, 1.125 in. Diameter, Solid Steel, Red Powdercoated, with Hardware, Chevy, Kit

Part Number: UPI-3668-R

Not Yet Reviewed

Estimated Ship Date: Monday 3/2/2026 if shipped by air

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Estimated Ship Date: Monday 3/2/2026 if shipped by air

UMI Performance Replacement Control Arm Bolts 3603

Control Arm Bolts, Rear Upper/Lower, Lock Nuts, Kit

Part Number: UPI-3603

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 3/2/2026 if shipped by air

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Estimated Ship Date: Monday 3/2/2026 if shipped by air

UMI Performance Rear Non-Adjustable Upper Control Arms 3016-R

A-Arms, Rear Upper, Tubular, Black Powdercoated, Steel, Pair

Part Number: UPI-3016-R

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Apr 28, 2026 if ordered today

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Estimated Ship Date: Apr 28, 2026 if ordered today

UMI Performance Replacement Control Arm Bolts 3011

Control Arm Bolts, Lower, Lock Nuts, Kit

Part Number: UPI-3011

4.5 out of 5 stars ( 6 )

Estimated Ship Date: Monday 3/2/2026 if shipped by air

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Estimated Ship Date: Monday 3/2/2026 if shipped by air

UMI Performance Control Arm Relocation Brackets 3010

Control Arm Relocation Brackets, Rear Lower, Natural, Weld-On, Steel, Kit

Part Number: UPI-3010

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 3/2/2026 if shipped by air

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Estimated Ship Date: Monday 3/2/2026 if shipped by air

UMI Performance Rear Non-Adjustable Lower Control Arms 3041-B

Control Arms, Rear Lower, Boxed, Black Powdercoated, Steel, Kit

Part Number: UPI-3041-B

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