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Firestone #4157 "Coil-Rite" air bag helper springs are designed to fit inside the existing Jeep Grand Cherokee 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. Jeep Grand Cherokee "Coil-Rite" air helper springs enable adjustment for varying loads and road conditions by inflating or deflating the air bag helper springs. Spring performance can be altered as easily as inflating a tire. Firestone "Coil Rite" air bag helper springs are installed between the frame of the Jeep Grand Cherokee and the suspension providing load support through the use of air pressure.
Features
- Easy installation (1 to 2 hours)
- Firestone #4157 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
- Firestone Limited Lifetime Warranty
| Download Instructions | View #4157 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): | YES |
1. Do NOT exceed the vehicles Recommended Gross Vehicle Weight Rating (GVWR)
Fits the Following Model:
Jeep Grand Cherokee
Fits the Following Years:
05, 06, 07, 08, 09, 10
2005, 2006, 2007, 2008, 2009, 2010
