Great springs i mixed this with metalcloak parts and man my flex is crazy and the gladiator still handle awesome! If you wanna clear 40s to 42s this is the way to go see my photos you must have adjustable control arms this will extend front out about 1.5 inches and rear 1 inch so drive lines are a must also! Tires on the jt are 40s tires in last photo are 42s good luck and Jeep on!