UMI Performance 70-81 GM F-Body Lowering Spring Front 2in Lowering

Name: UMI Performance 70-81 GM F-Body Lowering Spring Front 2in Lowering
Brand: UMI Performance
SKU: UMI2647F
Price: 169.99 USD
Availability: InStock

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UMI Performance

UMI Performance 70-81 GM F-Body Lowering Spring Front 2in Lowering

SKU: UMI2647F

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UMI’s 2nd Gen F-Body lowering springs are wound from 5160 ...Read More

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Car Wheel Size Chart

Wheel Diameter (inches)	Tire Width (mm)	Aspect Ratio	Rim Width (inches)
14	185	65	5.5
15	195	60	6.0
16	205	55	6.5
17	215	50	7.0
18	225	45	7.5
19	235	40	8.0
20	245	35	8.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

225 = Tire width in mm
45 = Aspect ratio (height as % of width)
R17 = Rim diameter in inches

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Product Details

Product Description

Part Numbers

Sizing & Fit

UMI’s 2nd Gen F-Body lowering springs are wound from 5160 CrSi premium wire and feature a linear 600 lb/in rate. UMI’s front springs are stiffer than stock to provide increased performance with decreased body roll and a lower center of gravity. These springs are suitable for Auto-x and Pro-Tour applications as well as corner carving/cruising. The ride height is engineered for a target 1” lowering with standard SBC as well as LS power (lightened cars may require spring trimming). The front springs are also suitable for full weight big block applications when ¼” additional lowering is desired. They have a tough black powder coat finish and UMI proudly manufactures these premium quality springs in the USA.

This Part Fits:

Year	Make	Model	Submodel
1970-1980	Chevrolet	Camaro	Base
1979-1981	Chevrolet	Camaro	Berlinetta
1973-1978	Chevrolet	Camaro	LT
1976-1978	Chevrolet	Camaro	LT Rally Sport
1976-1980	Chevrolet	Camaro	Rally Sport
1970-1973,1975	Chevrolet	Camaro	RS
1981	Chevrolet	Camaro	Sport
1970-1972	Chevrolet	Camaro	SS
1970-1974,1977-1981	Chevrolet	Camaro	Z28
1970-1981	Pontiac	Firebird	Base
1970-1981	Pontiac	Firebird	Esprit
1970-1981	Pontiac	Firebird	Formula
1970-1981	Pontiac	Firebird	Trans Am

Product Details

Product Description

Part Numbers

Sizing & Fit

Year	Make	Model	Submodel
1970-1980	Chevrolet	Camaro	Base
1979-1981	Chevrolet	Camaro	Berlinetta
1973-1978	Chevrolet	Camaro	LT
1976-1978	Chevrolet	Camaro	LT Rally Sport
1976-1980	Chevrolet	Camaro	Rally Sport
1970-1973,1975	Chevrolet	Camaro	RS
1981	Chevrolet	Camaro	Sport
1970-1972	Chevrolet	Camaro	SS
1970-1974,1977-1981	Chevrolet	Camaro	Z28
1970-1981	Pontiac	Firebird	Base
1970-1981	Pontiac	Firebird	Esprit
1970-1981	Pontiac	Firebird	Formula
1970-1981	Pontiac	Firebird	Trans Am

Product Details

Product Description

Year	Make	Model	Submodel
1970-1980	Chevrolet	Camaro	Base
1979-1981	Chevrolet	Camaro	Berlinetta
1973-1978	Chevrolet	Camaro	LT
1976-1978	Chevrolet	Camaro	LT Rally Sport
1976-1980	Chevrolet	Camaro	Rally Sport
1970-1973,1975	Chevrolet	Camaro	RS
1981	Chevrolet	Camaro	Sport
1970-1972	Chevrolet	Camaro	SS
1970-1974,1977-1981	Chevrolet	Camaro	Z28
1970-1981	Pontiac	Firebird	Base
1970-1981	Pontiac	Firebird	Esprit
1970-1981	Pontiac	Firebird	Formula
1970-1981	Pontiac	Firebird	Trans Am

Wheel Diameter (inches)	Tire Width (mm)	Aspect Ratio	Rim Width (inches)
14	185	65	5.5
15	195	60	6.0
16	205	55	6.5
17	215	50	7.0
18	225	45	7.5
19	235	40	8.0
20	245	35	8.5

Wheel Diameter (inches)	Tire Width (mm)	Aspect Ratio	Rim Width (inches)
14	185	65	5.5
15	195	60	6.0
16	205	55	6.5
17	215	50	7.0
18	225	45	7.5
19	235	40	8.0
20	245	35	8.5

Wheel Diameter (inches)	Tire Width (mm)	Aspect Ratio	Rim Width (inches)
14	185	65	5.5
15	195	60	6.0
16	205	55	6.5
17	215	50	7.0
18	225	45	7.5
19	235	40	8.0
20	245	35	8.5

Wheel Diameter (inches)	Tire Width (mm)	Aspect Ratio	Rim Width (inches)
14	185	65	5.5
15	195	60	6.0
16	205	55	6.5
17	215	50	7.0
18	225	45	7.5
19	235	40	8.0
20	245	35	8.5

UMI Performance 70-81 GM F-Body Lowering Spring Front 2in Lowering

UMI Performance 70-81 GM F-Body Lowering Spring Front 2in Lowering

Car Wheel Size Chart

How to Read Tire Size

Product Details

Product Details

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ARB Quick Release Retaining Pin Pk 2

ARB Recovery Glove

KC HiLiTES FLEX ERA 3 Light Shield Amber (ea)

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Chase Bays 2 Way Brake Bias Valve

Baja Designs XL Rock Guard - Black

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Wheel Diameter (inches)	Tire Width (mm)	Aspect Ratio	Rim Width (inches)
14	185	65	5.5
15	195	60	6.0
16	205	55	6.5
17	215	50	7.0
18	225	45	7.5
19	235	40	8.0
20	245	35	8.5

Wheel Diameter (inches)	Tire Width (mm)	Aspect Ratio	Rim Width (inches)
14	185	65	5.5
15	195	60	6.0
16	205	55	6.5
17	215	50	7.0
18	225	45	7.5
19	235	40	8.0
20	245	35	8.5