Jeep suspension kits allow you to get more ground clearance, bigger tires or aggressive look for your Jeep.
What to Buy:
When looking at which kit is best for your application you need to determin two important things: size of tire and use of vehicle.
On 07-09 Wranglers, 2.5-3.5" coil kit is designed for up to a 34" x 12.5" x 16" tire and moderate off road use. The 4" - 5" coil kit is designed for more severe off road use and up to a 35" x 12.5" x 16" tire.
On the 97-06 Wranglers 2" spacer lifts are designed for a larger tire then factory and light off road use. The 2" Coil Kit is designed for a larger time and moderate off road use. The 4" coil kit is designed for more severe off road use and up to 34" x 12.5" x 15 tire.