Product Information

Hellwig EZ Level 990 Series helper spring kits are great for medium size loads. Designed to prevent body roll, helps to restore sagging springs and stabilizes your truck or suv for a smooth ride. Designed to mount under factory axle u-bolt plates. Can be adjusted independently for uneven side to side loads. Installs easily with basic hand tools.

Features & Benefits

  • Hellwig # 991 is custom fit for the GMC Truck
  • Mounts under factory axle u-bolt plates
  • Helps eliminate sagging
  • 2000 lbs level load capacity helper springs
  • Simple bolt-on installation
  • Can be adjusted independently

Tech Specs

Download Instructions 991 Instructions
Level Load Capacity: 2,000 lbs
Average Install Time: 1 hours
Items Included:
(2) Hellwig EZ Level 990 Series Helper Springs, all required hardware
Weight:
20 lbs.
SKU #991 Fits:
  • 1987 GMC Truck
  • 1986 GMC Truck
  • 1985 GMC Truck
  • 1984 GMC Truck
  • 1983 GMC Truck
  • 1982 GMC Truck
  • 1981 GMC Truck
  • 1980 GMC Truck
  • 1979 GMC Truck
  • 1978 GMC Truck
  • 1977 GMC Truck
  • 1976 GMC Truck
  • 1975 GMC Truck
  • 1974 GMC Truck
  • 1973 GMC Truck
  • 1972 GMC Truck
  • 1971 GMC Truck
  • 1970 GMC Truck
  • 1969 GMC Truck
  • 1968 GMC Truck
  • 1967 GMC Truck
  • 1966 GMC Truck
  • 1965 GMC Truck
  • 1964 GMC Truck
  • 1963 GMC Truck
  • Installation Notes

    Note: Never load vehicle beyond the manufacturer's maximum gross vehicle weight rating.
     

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