1973-1991 GMC Suburban 2wd - "Coil-Rite" Air Bag Helper Springs (FRONT)

GMC Suburban Firestone Air Bags 1973-1991 by Firestone #4100
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Firestone - 4100cs-gmc
Authorized Dealer
Firestone #4100
Firestone - 4100cs-gmc
Authorized Dealer
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Firestone "Coil-Rite" air bag helper springs are designed to fit inside the existing coil spring suspension creating a variable rate spring. These air bags are made of durable, elastic polyurethane providing years of comfort and stability to your vehicle. "Coil-Rite" air bags enable adjustment for varying loads and road conditions by inflating or deflating the springs. Performance can be altered as easily as inflating a tire. Installed between the frame of the vehicle and the suspension providing load support through the use of air pressure.

Features and Benefits

  • Firestone # 4100 Air Bags are custom fit for the GMC Suburban
  • Easy installation (1 to 2 hours)
  • Kit includes (2) air bag helper springs and any required hardware
  • Will handle loads capacities up to 500-1000 lbs*
  • Reduce suspension fatigue
  • Improve steering and balance
  • Increase vehicle stability
  • Prevent "bottom" out
  • Limited Lifetime Warranty

Installation Notes

1. *Do NOT exceed the vehicles Recommended Gross Vehicle Weight Rating (GVWR)

Tech Specs

Download Instructions 4100 Instructions
Level Load Capacity: 500 lbs to 1000 lbs
Average Install Time: 1 to 2 hours
Front or Rear Axle: REAR
Drilling Required (Yes or No): NO
Weight: 13 lbs.
Part 4100 fits:
  • 1991 GMC Suburban
  • 1990 GMC Suburban
  • 1989 GMC Suburban
  • 1988 GMC Suburban
  • 1987 GMC Suburban
  • 1986 GMC Suburban
  • 1985 GMC Suburban
  • 1984 GMC Suburban
  • 1983 GMC Suburban
  • 1982 GMC Suburban
  • 1981 GMC Suburban
  • 1980 GMC Suburban
  • 1979 GMC Suburban
  • 1978 GMC Suburban
  • 1977 GMC Suburban
  • 1976 GMC Suburban
  • 1975 GMC Suburban
  • 1974 GMC Suburban
  • 1973 GMC Suburban

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