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Vehicle Info NeededUMI PERFORMANCEPART NUMBER: 236-4057-225
4057-225 1964-1972 GM A-Body Rear Coilover Kit, 2-3 in. Lowering Street; Black
$1,06999
Ships on Oct 21, 2026
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Coilover Kit & Mount1964-1972 GM A-Body Rear Coilover Kit Finish: Black Powdercoated Material: Aluminum Adjustable: Yes Spring Rate: 225.0 Attachment: Bolt On Grade: Performance Hardware Included: Yes Sold as a Kit
Factory GM axle housings only. Does not fit Quick Performance, Currie, Moser, etc. For 2-3 in. Pro-Tour style lowering. Notes: Rear shocks may not clear all exhaust tail pipes. UMI’s bolt-in rear coilover kit allows full ride height, spring rate and damping adjustments, while trailing arm adjustment enables fine tuning of instant center. The reinforced upper mount is a direct bolt-in (requiring one additional hole to be drilled) and holds a true 2-1/2” racing coilover with double-shear mount.
UMI Performance 236-4057-225 Coilover Kit & Mount Features:
- Fits: 1964-1972 GM A-Body Rear Coilover Kit, 2-3 in. Lowering Street
- Material: Aluminum
- Finish: Black Powdercoated
- Color: Black
- Adjustable: Yes
- Attachment Type: Bolt On
- Pre-Greased: No
- Hardware Included: Yes
- Grade: Performance
- Spring Rate: 225.0
- Universal Or Specific Fit: Specific
Part TypeCoilover Shock Conversion Kit
BrandUMI PERFORMANCE
Package Width28.0
Weight28.0 PG
Part CategoryPerformance Parts
Part FitmentDirect Fit
Vendor Part Number4057-225
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations
