Rough Country - 653-2.5-inch Suspension Lift System for Jeep: 97-06 Wrangler TJ 4WD, 04-06 Wrangler Unlimited LJ 4WD FEATURES: Clears up to 31-inch tires; Easy bolt-on installation; Increased ground clearance; Levels the front with the rear of the Jeep; Springs are progressive rate for enhanced ride quality NOTES: Fits 6-Cylinder engine models only KIT CONTENTS: Front: Progressive rate coil springs; Rear: Progressive rate coil springs SPECS: Installation Time: 2-3 hours; Backspacing: Factory; Recommended Tire Size: 31-by-10.50; Weight: 48.1-lbs FITMENT: Jeep: 97-06 Wrangler TJ 4WD, 04-06 Wrangler Unlimited LJ 4WD