Description

Hellwig #991 EZ Level 990 Series helper spring kits are great for medium size loads. Designed to prevent your GMC truck from body roll, helps to restore sagging springs and stabilizes your GMC for a smooth ride. Designed to mount under factory axle u-bolt plates. Can be adjusted independently for uneven side to side loads.

Features

  • 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

Fits the Following Model:

GMC Truck

Fits the Following Years:

63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87
1963, 1964, 1965, 1966, 1967, 1968, 1969, 1970, 1971, 1972, 1973, 1974, 1975, 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1985, 1986, 1987

Tech Specs

Download Instructions 991 Instructions
Level Load Capacity: 2,000 lbs
Average Install Time: 1 hours

Weight

20 lbs.

Install Notes

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