UMI Performance 64-72 GM A-Body / 78-88 G-Body 2in Lowering Spring Rear

SKU: UMI4051R
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Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

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

Product Details

Product Description
Part Numbers
Sizing & Fit

About UMI Performance

UMI Performance engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full UMI Performance lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

UMI Performance 64-72 GM A-Body & 78-88 G-Body 2" Lowering Spring Set - Rear

Achieve the perfect stance and improved handling with the UMI Performance 4051R rear lowering springs. Designed for both classic GM A-Body and G-Body vehicles, these springs offer a 2-inch drop while significantly enhancing your car's performance characteristics. Wound from premium 9254 CrSi wire, they feature a linear 130 lb/in rate, providing consistent suspension response crucial for spirited driving, autocross, and Pro-Touring applications. The increased stiffness effectively reduces body roll and eliminates the common "floating" sensation found in stock A-body suspensions.

Key Features and Benefits:

  • Enhanced Handling: Linear spring rate ensures predictable suspension behavior for better control.
  • Lowered Profile: Provides a 2-inch drop for an aggressive, sportier look.
  • Reduced Body Roll: Stiffer rate minimizes lean during cornering.
  • Durable Construction: Made from high-strength 9254 CrSi spring wire for long-lasting performance.
  • Protective Finish: Features a tough black powder coat for corrosion resistance.
  • Proudly Made in USA: Manufactured with quality and precision in the United States.
  • Broad Fitment: Compatible with 1964-1972 GM A-Body and 1978-1988 GM G-Body vehicles.

These rear lowering springs are an ideal upgrade for enthusiasts seeking to improve their vehicle's cornering ability and overall driving dynamics. The combination of a lower center of gravity and reduced body roll translates to a more connected and engaging driving experience. Invest in quality and performance with UMI Performance rear lowering springs, available now at GGCRACING.

Vehicle Fitment

Years Make Model Trim
1967 Buick Gran Sport Base
1978-1982 Buick Regal Sport
1978-1987 Buick Regal Base
1978-1988 Buick Regal Limited
1982 Buick Regal Limited Turbo
1982-1983 Buick Regal Estate Wagon
1983-1986 Buick Regal T-Type
1984-1987 Buick Regal Grand National
1987 Buick Regal GNX
1988 Buick Regal Custom
1967-1972 Buick Skylark Base
1968-1972 Buick Skylark Custom
1970 Buick Skylark 350
1972 Buick Skylark 350
1967 Chevrolet Chevelle Deluxe
1967-1968 Chevrolet Chevelle Base
1967-1968 Chevrolet Chevelle 300
1967-1969 Chevrolet Chevelle 300 Deluxe
1967-1972 Chevrolet Chevelle Concours
1967-1972 Chevrolet Chevelle SS
1968-1972 Chevrolet Chevelle Malibu
1968-1972 Chevrolet Chevelle Nomad
1969-1972 Chevrolet Chevelle Concours Estate
1969-1972 Chevrolet Chevelle Greenbrier
1970-1972 Chevrolet Chevelle Base
1967-1972 Chevrolet El Camino Base
1968-1972 Chevrolet El Camino Custom
1968-1972 Chevrolet El Camino SS
1978 Chevrolet El Camino Conquista
1978-1987 Chevrolet El Camino Base
1978-1987 Chevrolet El Camino SS
1979-1981 Chevrolet El Camino Royal Knight
1981-1986 Chevrolet El Camino Conquista
1967 Chevrolet Malibu Base
1978-1980 Chevrolet Malibu Classic Estate
1978-1981 Chevrolet Malibu Base
1978-1981 Chevrolet Malibu Classic Landau
1978-1983 Chevrolet Malibu Classic
1979 Chevrolet Malibu Landau
1979 Chevrolet Malibu Police
1979-1980 Chevrolet Malibu Classic Sport
1979-1980 Chevrolet Malibu Estate
1979-1980 Chevrolet Malibu Sport
1970-1972 Chevrolet Monte Carlo Base
1978 Chevrolet Monte Carlo Sport
1978-1981 Chevrolet Monte Carlo Landau
1979 Chevrolet Monte Carlo Base
1980 Chevrolet Monte Carlo Sport
1981-1988 Chevrolet Monte Carlo Base
1983 Chevrolet Monte Carlo CL
1983-1988 Chevrolet Monte Carlo SS
1986-1988 Chevrolet Monte Carlo LS
1967-1971 Oldsmobile 442 Base
1967 Oldsmobile Cutlass Holiday
1967 Oldsmobile Cutlass Turnpike Cruiser
1967-1972 Oldsmobile Cutlass Base
1968 Oldsmobile Cutlass S
1971-1972 Oldsmobile Cutlass S
1972 Oldsmobile Cutlass Cruiser
1978-1979 Oldsmobile Cutlass Vista Cruiser

…and 20 additional fitments. Contact us to confirm yours.

Product Details

Product Description
Part Numbers
Sizing & Fit

About UMI Performance

UMI Performance engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full UMI Performance lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

UMI Performance 64-72 GM A-Body & 78-88 G-Body 2" Lowering Spring Set - Rear

Achieve the perfect stance and improved handling with the UMI Performance 4051R rear lowering springs. Designed for both classic GM A-Body and G-Body vehicles, these springs offer a 2-inch drop while significantly enhancing your car's performance characteristics. Wound from premium 9254 CrSi wire, they feature a linear 130 lb/in rate, providing consistent suspension response crucial for spirited driving, autocross, and Pro-Touring applications. The increased stiffness effectively reduces body roll and eliminates the common "floating" sensation found in stock A-body suspensions.

Key Features and Benefits:

  • Enhanced Handling: Linear spring rate ensures predictable suspension behavior for better control.
  • Lowered Profile: Provides a 2-inch drop for an aggressive, sportier look.
  • Reduced Body Roll: Stiffer rate minimizes lean during cornering.
  • Durable Construction: Made from high-strength 9254 CrSi spring wire for long-lasting performance.
  • Protective Finish: Features a tough black powder coat for corrosion resistance.
  • Proudly Made in USA: Manufactured with quality and precision in the United States.
  • Broad Fitment: Compatible with 1964-1972 GM A-Body and 1978-1988 GM G-Body vehicles.

These rear lowering springs are an ideal upgrade for enthusiasts seeking to improve their vehicle's cornering ability and overall driving dynamics. The combination of a lower center of gravity and reduced body roll translates to a more connected and engaging driving experience. Invest in quality and performance with UMI Performance rear lowering springs, available now at GGCRACING.

Vehicle Fitment

Years Make Model Trim
1967 Buick Gran Sport Base
1978-1982 Buick Regal Sport
1978-1987 Buick Regal Base
1978-1988 Buick Regal Limited
1982 Buick Regal Limited Turbo
1982-1983 Buick Regal Estate Wagon
1983-1986 Buick Regal T-Type
1984-1987 Buick Regal Grand National
1987 Buick Regal GNX
1988 Buick Regal Custom
1967-1972 Buick Skylark Base
1968-1972 Buick Skylark Custom
1970 Buick Skylark 350
1972 Buick Skylark 350
1967 Chevrolet Chevelle Deluxe
1967-1968 Chevrolet Chevelle Base
1967-1968 Chevrolet Chevelle 300
1967-1969 Chevrolet Chevelle 300 Deluxe
1967-1972 Chevrolet Chevelle Concours
1967-1972 Chevrolet Chevelle SS
1968-1972 Chevrolet Chevelle Malibu
1968-1972 Chevrolet Chevelle Nomad
1969-1972 Chevrolet Chevelle Concours Estate
1969-1972 Chevrolet Chevelle Greenbrier
1970-1972 Chevrolet Chevelle Base
1967-1972 Chevrolet El Camino Base
1968-1972 Chevrolet El Camino Custom
1968-1972 Chevrolet El Camino SS
1978 Chevrolet El Camino Conquista
1978-1987 Chevrolet El Camino Base
1978-1987 Chevrolet El Camino SS
1979-1981 Chevrolet El Camino Royal Knight
1981-1986 Chevrolet El Camino Conquista
1967 Chevrolet Malibu Base
1978-1980 Chevrolet Malibu Classic Estate
1978-1981 Chevrolet Malibu Base
1978-1981 Chevrolet Malibu Classic Landau
1978-1983 Chevrolet Malibu Classic
1979 Chevrolet Malibu Landau
1979 Chevrolet Malibu Police
1979-1980 Chevrolet Malibu Classic Sport
1979-1980 Chevrolet Malibu Estate
1979-1980 Chevrolet Malibu Sport
1970-1972 Chevrolet Monte Carlo Base
1978 Chevrolet Monte Carlo Sport
1978-1981 Chevrolet Monte Carlo Landau
1979 Chevrolet Monte Carlo Base
1980 Chevrolet Monte Carlo Sport
1981-1988 Chevrolet Monte Carlo Base
1983 Chevrolet Monte Carlo CL
1983-1988 Chevrolet Monte Carlo SS
1986-1988 Chevrolet Monte Carlo LS
1967-1971 Oldsmobile 442 Base
1967 Oldsmobile Cutlass Holiday
1967 Oldsmobile Cutlass Turnpike Cruiser
1967-1972 Oldsmobile Cutlass Base
1968 Oldsmobile Cutlass S
1971-1972 Oldsmobile Cutlass S
1972 Oldsmobile Cutlass Cruiser
1978-1979 Oldsmobile Cutlass Vista Cruiser

…and 20 additional fitments. Contact us to confirm yours.

Product Details

Product Description

About UMI Performance

UMI Performance engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full UMI Performance lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

UMI Performance 64-72 GM A-Body & 78-88 G-Body 2" Lowering Spring Set - Rear

Achieve the perfect stance and improved handling with the UMI Performance 4051R rear lowering springs. Designed for both classic GM A-Body and G-Body vehicles, these springs offer a 2-inch drop while significantly enhancing your car's performance characteristics. Wound from premium 9254 CrSi wire, they feature a linear 130 lb/in rate, providing consistent suspension response crucial for spirited driving, autocross, and Pro-Touring applications. The increased stiffness effectively reduces body roll and eliminates the common "floating" sensation found in stock A-body suspensions.

Key Features and Benefits:

  • Enhanced Handling: Linear spring rate ensures predictable suspension behavior for better control.
  • Lowered Profile: Provides a 2-inch drop for an aggressive, sportier look.
  • Reduced Body Roll: Stiffer rate minimizes lean during cornering.
  • Durable Construction: Made from high-strength 9254 CrSi spring wire for long-lasting performance.
  • Protective Finish: Features a tough black powder coat for corrosion resistance.
  • Proudly Made in USA: Manufactured with quality and precision in the United States.
  • Broad Fitment: Compatible with 1964-1972 GM A-Body and 1978-1988 GM G-Body vehicles.

These rear lowering springs are an ideal upgrade for enthusiasts seeking to improve their vehicle's cornering ability and overall driving dynamics. The combination of a lower center of gravity and reduced body roll translates to a more connected and engaging driving experience. Invest in quality and performance with UMI Performance rear lowering springs, available now at GGCRACING.

Vehicle Fitment

Years Make Model Trim
1967 Buick Gran Sport Base
1978-1982 Buick Regal Sport
1978-1987 Buick Regal Base
1978-1988 Buick Regal Limited
1982 Buick Regal Limited Turbo
1982-1983 Buick Regal Estate Wagon
1983-1986 Buick Regal T-Type
1984-1987 Buick Regal Grand National
1987 Buick Regal GNX
1988 Buick Regal Custom
1967-1972 Buick Skylark Base
1968-1972 Buick Skylark Custom
1970 Buick Skylark 350
1972 Buick Skylark 350
1967 Chevrolet Chevelle Deluxe
1967-1968 Chevrolet Chevelle Base
1967-1968 Chevrolet Chevelle 300
1967-1969 Chevrolet Chevelle 300 Deluxe
1967-1972 Chevrolet Chevelle Concours
1967-1972 Chevrolet Chevelle SS
1968-1972 Chevrolet Chevelle Malibu
1968-1972 Chevrolet Chevelle Nomad
1969-1972 Chevrolet Chevelle Concours Estate
1969-1972 Chevrolet Chevelle Greenbrier
1970-1972 Chevrolet Chevelle Base
1967-1972 Chevrolet El Camino Base
1968-1972 Chevrolet El Camino Custom
1968-1972 Chevrolet El Camino SS
1978 Chevrolet El Camino Conquista
1978-1987 Chevrolet El Camino Base
1978-1987 Chevrolet El Camino SS
1979-1981 Chevrolet El Camino Royal Knight
1981-1986 Chevrolet El Camino Conquista
1967 Chevrolet Malibu Base
1978-1980 Chevrolet Malibu Classic Estate
1978-1981 Chevrolet Malibu Base
1978-1981 Chevrolet Malibu Classic Landau
1978-1983 Chevrolet Malibu Classic
1979 Chevrolet Malibu Landau
1979 Chevrolet Malibu Police
1979-1980 Chevrolet Malibu Classic Sport
1979-1980 Chevrolet Malibu Estate
1979-1980 Chevrolet Malibu Sport
1970-1972 Chevrolet Monte Carlo Base
1978 Chevrolet Monte Carlo Sport
1978-1981 Chevrolet Monte Carlo Landau
1979 Chevrolet Monte Carlo Base
1980 Chevrolet Monte Carlo Sport
1981-1988 Chevrolet Monte Carlo Base
1983 Chevrolet Monte Carlo CL
1983-1988 Chevrolet Monte Carlo SS
1986-1988 Chevrolet Monte Carlo LS
1967-1971 Oldsmobile 442 Base
1967 Oldsmobile Cutlass Holiday
1967 Oldsmobile Cutlass Turnpike Cruiser
1967-1972 Oldsmobile Cutlass Base
1968 Oldsmobile Cutlass S
1971-1972 Oldsmobile Cutlass S
1972 Oldsmobile Cutlass Cruiser
1978-1979 Oldsmobile Cutlass Vista Cruiser

…and 20 additional fitments. Contact us to confirm yours.

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