Overview
The 4 Wheel Parts K4240BXU is a 3.5 inch factory performance lift kit with PRO-VST coilovers and a high angle upper control arm for the 2021–2022 Ford Bronco. The lift is adjustable, with a lift height range of 0 to 3.5 inches, and it has room for tires up to 37 inches tall.
The rear uses coilover shocks, and PRO-VST shocks are fitted at the front and rear. The high angle upper control arm is part of the kit, and the shocks come with it.
Key features
- 3.5 inch stage 1 lift
- Adjustable lift height
- PRO-VST coilovers and shocks
- High angle upper control arms
- Shocks included
- Designed for up to 37-inch tall tires
Tire size and fender clearance
Taller tires change gearing, steering effort and the amount of room in the wheel well, so tire choice goes hand in hand with a lift. Start by confirming the tire height the kit accommodates and how close the tires sit to the fenders at full lock and full compression. Rubbing at the front or rear can point to a need for fender trimming or steering stop adjustment.
Upper control arm changes often bring a look at the matching bushings and joints, so inspect them while the kit is apart. Check the driveline angles and the brake hose length after the lift, because the new geometry can stretch hoses or change joint angles. Retorque fasteners after the first few drives, and recheck the alignment whenever the ride height is adjusted.
- Check tire rub at full steering lock
- Confirm brake hose length after installation
- Recheck alignment after any height adjustment
Specifications
| Brand | 4 Wheel Parts |
|---|---|
| Part number | K4240BXU |
| Suspension type | Lift kit, stage 1 |
| Lift amount | 3.5 inch |
| Lift height range | 0 to 3.5 inches |
| Rear lift method | Coilover |
| Rear lift component | Coil spring |
| Front shocks | PRO-VST |
| Rear shocks | PRO-VST |
| Shocks included | Yes |
| Tire size | 35-inch |
| Fitment type | Direct fit |
Vehicle fitment
It fits the 2021–2022 Ford Bronco in Badlands, Base, Big Bend, Black Diamond, First Edition, Outer Banks and Wildtrak trims.
The list does not include the Ford Bronco Sport, the 2020 and earlier Bronco, or the Jeep models. Confirm your vehicle’s year, model and trim before ordering.
Installation notes
A coilover and upper control arm lift changes the suspension geometry, so have the alignment and driveline angles checked after the kit is installed. Set the adjustable lift height before the alignment is done.
What’s included
The kit includes the coilovers, PRO-VST shocks and high angle upper control arm. Confirm whether lower control arms, brackets or other hardware are needed before starting.
