The 69-3920 SST Lift Kit works with the factory 2 Inch front lift. This kit includes a top mount strut spacer along with a pre-load spacer to limit droop and the same premium grade upper control arms now available in our 66-3921 leveling kit. OE style 3 Inch tall cast iron rear lift blocks and rear bump stop extension cups are also included to create a true AT4 or Trail Boss-specific bolt-on lift kit that provides 2 Inch of front lift and 1 Inch of rear lift. This new lift kit concept which is also engineered specifically to work with that factory OE suspension lift.