Features:

Front/Rear Dual Rate Coil Springs designed to great ride quality across any terrain.
HD springs offer additional load capacity for vehicles equipped with winch bumper, fullsize spare, roof rack, etc.
Front Adjustable Track Bar and Rear Track Bar Bracket to correct axle positioning under vehicle.
Front Sway Bar Quicker Disconnects and Rear Sway Bar Links for increased off-road articulation.
Front/Rear Bump Stop Extensions to properly limit suspension up travel.
Front/Rear J-Flex Upper Control Arms to add strength and adjustability.
Front/Rear J-Flex Lower Control Arms to add strength and adjustability.Tire Specs

Rubicon Models (all kits)

Tire: 37x12.50
Wheel: 17x9, 18x9, 20x9    
Backspacing: 5"

Non-Rubicon Models (all kits)

Tire: 35x12.50
Wheel: 17x9, 18x9, 20x9
Backspacing: 5"

Other tire/wheel sizes can be used, however may require additional modifications.