1966 UMI Performance Chassis & Suspension - Free Shipping on Orders Over $109 at Summit Racing

UMI Performance Suspension Lowering Kits AB4250-2

UMI Performance Suspension Lowering Kits AB4250-2

64-66 GM A-Body Shock/Spring Lowering Kit, Double Adj. Shocks 250 front spring rate, 2" rear drop

Part Number: UPI-AB4250-2

Not Yet Reviewed

Estimated Ship Date: Dec 3, 2025 if ordered today

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Estimated Ship Date: Dec 3, 2025 if ordered today

UMI Performance Suspension Lowering Kits AB4350-1

64-66 GM A-Body Shock/Spring Lowering Kit, Double Adj. Shocks 350 front spring rate, 1" rear drop

Part Number: UPI-AB4350-1

Not Yet Reviewed

Estimated Ship Date: Dec 3, 2025 if ordered today

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Estimated Ship Date: Dec 3, 2025 if ordered today

UMI Performance Suspension Lowering Kits AB4350-2

64-66 GM A-Body Shock/Spring Lowering Kit, Double Adj. Shocks 350 front spring rate, 2" rear drop

Part Number: UPI-AB4350-2

Not Yet Reviewed

Estimated Ship Date: Dec 3, 2025 if ordered today

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Estimated Ship Date: Dec 3, 2025 if ordered today

UMI Performance Suspension Lowering Kits AB4450-1

64-66 GM A-Body Shock/Spring Lowering Kit, Double Adj, Shocks 450 front spring rate, 1" rear drop

Part Number: UPI-AB4450-1

Not Yet Reviewed

Estimated Ship Date: Dec 3, 2025 if ordered today

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Estimated Ship Date: Dec 3, 2025 if ordered today

UMI Performance Suspension Lowering Kits AB4450-2

64-66 GM A-Body Shock/Spring Lowering Kit, Double Adj, Shocks 450 front spring rate, 2" rear drop

Part Number: UPI-AB4450-2

Not Yet Reviewed

Estimated Ship Date: Dec 3, 2025 if ordered today

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Estimated Ship Date: Dec 3, 2025 if ordered today

UMI Performance Suspension Lowering Kits AB4550-1

64-66 GM A-Body Shock/Spring Lowering Kit, Double Adj, Shocks 550 front spring rate, 1" rear drop

Part Number: UPI-AB4550-1

Not Yet Reviewed

Estimated Ship Date: Dec 3, 2025 if ordered today

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Estimated Ship Date: Dec 3, 2025 if ordered today

UMI Performance Suspension Lowering Kits AB4550-2

64-66 GM A-Body Shock/Spring Lowering Kit, Double Adj, Shocks 550 front spring rate, 2" rear drop

Part Number: UPI-AB4550-2

Not Yet Reviewed

Estimated Ship Date: Dec 3, 2025 if ordered today

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Estimated Ship Date: Dec 3, 2025 if ordered today

UMI Performance Front Adjustable Upper A-Arms 4056-1-R

Front Upper A-Arms, Adjustable, Standard Height Ball Joints

Part Number: UPI-4056-1-R

Not Yet Reviewed

Estimated Ship Date: Jan 8, 2026 if ordered today

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Estimated Ship Date: Jan 8, 2026 if ordered today

UMI Performance Rear Adjustable Lower Control Arms 4023CM-R

Control Arms, Tubular, Adjustable, Steel, Red Powdercoated, Pair

Part Number: UPI-4023CM-R

Not Yet Reviewed

Estimated Ship Date: Jan 8, 2026 if ordered today

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Estimated Ship Date: Jan 8, 2026 if ordered today

UMI Performance Shock Tower Braces for 1964-1972 EL CAMINO - 4065-R

Shock and Strut Braces, Shock Tower Braces, Steel, Red Powdercoated, Rear Upper, Chevrolet, Each

Part Number: UPI-4065-R

Not Yet Reviewed

Estimated Ship Date: Dec 1, 2025 if ordered today

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Estimated Ship Date: Dec 1, 2025 if ordered today

UMI Performance 1964-72 GM A-Body Rear Lift Bars 4020-B

Traction Bars, Weld-In, Steel, Black Powdercoated, Chevy, Buick, Pontiac, Oldsmobile, Pair

Part Number: UPI-4020-B

Not Yet Reviewed

Estimated Ship Date: Dec 1, 2025 if ordered today

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Estimated Ship Date: Dec 1, 2025 if ordered today

UMI Performance Front Non-Adjustable Lower A-Arms 4032-R

Control Arms, Non-Adjustable, Tubular, Steel, Red, Front Lower, Buick, Chevy, Oldsmobile, Pontiac, Pair

Part Number: UPI-4032-R

Not Yet Reviewed

Estimated Ship Date: Dec 29, 2025 if ordered today

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Estimated Ship Date: Dec 29, 2025 if ordered today

UMI Performance Complete Front End Kit 403256-3-B

Control Arms, Tubular, Steel, Black, Front Upper/Lower, Buick, Chevy, Oldsmobile, Pontiac, Tall Design, Kit

Part Number: UPI-403256-3-B

Not Yet Reviewed

Estimated Ship Date: Dec 15, 2025 if ordered today

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Estimated Ship Date: Dec 15, 2025 if ordered today

UMI Performance Complete Front End Kit 403256-3-R

Control Arms, Tubular, Steel, Red, Front Upper/Lower, Buick, Chevy, Oldsmobile, Pontiac, Tall Design, Kit

Part Number: UPI-403256-3-R

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Dec 15, 2025 if ordered today

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Estimated Ship Date: Dec 15, 2025 if ordered today

UMI Performance Rear Non-Adjustable Lower Control Arms 4038-B

Control Arms, Rear Lower, Tubular, Black Powdercoated, Steel, Pair

Part Number: UPI-4038-B

4.67 out of 5 stars ( 3 )

Estimated Ship Date: Dec 15, 2025 if ordered today

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Estimated Ship Date: Dec 15, 2025 if ordered today

UMI Performance Rear Adjustable Upper Control Arms 4019-R

Control Arms, Tubular, Rear, Upper, Steel, Red Powdercoated, Chevy, Buick, Oldsmobile, Pontiac, Pair

Part Number: UPI-4019-R

Not Yet Reviewed

Estimated Ship Date: Dec 22, 2025 if ordered today

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Estimated Ship Date: Dec 22, 2025 if ordered today

UMI Performance Rear Adjustable Upper and Non-Adjustable Lower Control Arm Kits 402119-R

Control Arms, Tubular/Boxed, Rear, Upper/Lower, Steel, Red Powdercoated, Chevy, Buick, Oldsmobile, Pontiac, Kit

Part Number: UPI-402119-R

Not Yet Reviewed

Estimated Ship Date: Dec 22, 2025 if ordered today

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Estimated Ship Date: Dec 22, 2025 if ordered today

UMI Performance Rear Adjustable Upper and Non-Adjustable Lower Control Arm Kits 401526-R

Control Arms, Rear Lower, Adjustable, Tubular, Red Powdercoated, Steel, Kit

Part Number: UPI-401526-R

Not Yet Reviewed

Estimated Ship Date: Dec 15, 2025 if ordered today

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Estimated Ship Date: Dec 15, 2025 if ordered today

UMI Performance Rear Adjustable Upper and Non-Adjustable Lower Control Arm Kits 402119-B

Control Arms, Tubular/Boxed, Rear, Upper/Lower, Steel, Black Powdercoated, Chevy, Buick, Oldsmobile, PontiacKit

Part Number: UPI-402119-B

Not Yet Reviewed

Estimated Ship Date: Dec 15, 2025 if ordered today

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Estimated Ship Date: Dec 15, 2025 if ordered today

UMI Performance Bolt-In Viking Rear Coilover Kits 4057-110

Coilover Kit, 1964-72 GM A-Body, Rear, Bolt-In, Control Arm Relocation, Viking Double Adjustable Shocks, 110 lbs. Springs, Drag, Kit

Part Number: UPI-4057-110

Not Yet Reviewed

Estimated Ship Date: Dec 23, 2025 if ordered today

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Estimated Ship Date: Dec 23, 2025 if ordered today

UMI Performance 1964-72 GM A-Body Rear Coilover Kits 4057-250

Coilover Kit, 1964-72 GM A-Body, Rear, Bolt-In, Control Arm Relocation, Viking Double Adjustable Shocks, 250 lbs. Springs, AutoX / Road Racing, Kit

Part Number: UPI-4057-250

Not Yet Reviewed

Estimated Ship Date: Dec 16, 2025 if ordered today

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Estimated Ship Date: Dec 16, 2025 if ordered today

UMI Performance Stage 2.5 Handling Kits ABF404-2-R

GM A-Body Handling Package, GM A-Body Handling Package, 550 lb. Front Rate Springs, 225 lb. Rear Rate Springs

Part Number: UPI-ABF404-2-R

Not Yet Reviewed

Estimated Ship Date: Jan 12, 2026 if ordered today

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Estimated Ship Date: Jan 12, 2026 if ordered today

UMI Performance Stage 3 Handling Kits ABF405-1-R

65-66 GM A-Body Handling Kit, 1 in. lowering, Stage 3- Red 4 BOX KIT

Part Number: UPI-ABF405-1-R

Not Yet Reviewed

Estimated Ship Date: Jan 12, 2026 if ordered today

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Estimated Ship Date: Jan 12, 2026 if ordered today

UMI Performance Stage 3 Handling Kits ABF405-2-B

Handling Kit, 2" Lowering, Stage 3- Black

Part Number: UPI-ABF405-2-B

Not Yet Reviewed

Estimated Ship Date: Jan 12, 2026 if ordered today

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Estimated Ship Date: Jan 12, 2026 if ordered today

UMI Performance Stage 3 Handling Kits ABF405-2-R

Handling Kit, 2" Lowering, Stage 3- Red

Part Number: UPI-ABF405-2-R

Not Yet Reviewed

Estimated Ship Date: Jan 12, 2026 if ordered today

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Estimated Ship Date: Jan 12, 2026 if ordered today