UMI Performance 78-88 GM G-Body Lowering Spring Kit 2in Lowering

SKU: UMI3051

About UMI Performance UMI Performance engineers high-quality automotive parts and ...Read more

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Sale price$319.99
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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 Lowering Spring Kit for 1978-1988 GM G-Body

Transform your 1978-1988 GM G-Body with the UMI Performance Lowering Spring Kit, engineered to provide a significant drop and improved handling characteristics. This comprehensive kit is designed for enthusiasts seeking a lower center of gravity and a more dynamic driving experience.

Kit Features & Benefits:

  • Engineered for Performance: Developed with input from a leading Sprint Cup chassis engineer, these springs offer superior performance for street, autocross, and Pro-Touring applications.
  • Front Springs: Wound from 5160 CrSi premium wire with a linear 600 lb/in rate, these front springs reduce body roll and enhance stability. They are designed for a 2-inch drop with standard SBC engines.
  • Rear Springs: Crafted from 9254 CrSi premium wire with a linear 130 lb/in rate, the rear springs complement the front for balanced handling and a consistent ride.
  • Improved Ride Quality: The linear spring rates provide predictable handling, reducing the common 'floating' sensation found in stock G-Body suspensions.
  • Aggressive Stance: Achieve a desirable 2-inch lowering effect, giving your G-Body a more aggressive and visually appealing stance.
  • Material Quality: Utilizes premium CrSi wire for maximum durability and consistent spring performance over time.

This UMI Performance Lowering Spring Kit is the perfect solution for G-Body owners looking to enhance both the aesthetics and the performance of their vehicle. Experience a tighter, more responsive feel on the road.

Upgrade your suspension with quality parts from GGCRACING.

…and 60 additional fitments. Contact us to confirm yours.

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 Lowering Spring Kit for 1978-1988 GM G-Body

Transform your 1978-1988 GM G-Body with the UMI Performance Lowering Spring Kit, engineered to provide a significant drop and improved handling characteristics. This comprehensive kit is designed for enthusiasts seeking a lower center of gravity and a more dynamic driving experience.

Kit Features & Benefits:

  • Engineered for Performance: Developed with input from a leading Sprint Cup chassis engineer, these springs offer superior performance for street, autocross, and Pro-Touring applications.
  • Front Springs: Wound from 5160 CrSi premium wire with a linear 600 lb/in rate, these front springs reduce body roll and enhance stability. They are designed for a 2-inch drop with standard SBC engines.
  • Rear Springs: Crafted from 9254 CrSi premium wire with a linear 130 lb/in rate, the rear springs complement the front for balanced handling and a consistent ride.
  • Improved Ride Quality: The linear spring rates provide predictable handling, reducing the common 'floating' sensation found in stock G-Body suspensions.
  • Aggressive Stance: Achieve a desirable 2-inch lowering effect, giving your G-Body a more aggressive and visually appealing stance.
  • Material Quality: Utilizes premium CrSi wire for maximum durability and consistent spring performance over time.

This UMI Performance Lowering Spring Kit is the perfect solution for G-Body owners looking to enhance both the aesthetics and the performance of their vehicle. Experience a tighter, more responsive feel on the road.

Upgrade your suspension with quality parts from GGCRACING.

…and 60 additional fitments. Contact us to confirm yours.

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