4 Inch Lift Kit | Ford F150 (15-20) 4WD

BDS steps up the performance and capability of the 2015-2020 Ford F150 4WD trucks with 4-inch suspension lift kits. Designed to improve stance, performance, and capability, this kit includes everything necessary to set your truck up right with clearance for up to 35 inch Tires.

This kit takes advantage of BDS's tried and true high-clearance design for improved ground clearance, strength, and offroad protection while correcting suspension and steering geometry for great on-road handling characteristics.

Up front the kit utilizes high-arched 1/4-inch thick steel crossmembers, multipiece differential relocation brackets and skidplate designed for offroad protection.

Steering geometry is corrected at the new taller ride height with a pair of massive CNC-machined ductile iron steering knuckles. These combined with the provided sway bar relocation brackets, brake line brackets, alignment cam bolts, supplied hardware and more provide a comprehensive front suspension lift ready for use and abuse.

In the rear BDS utilizes high strength fabricated lift blocks and longer u-bolts to lift and level the stance along and NX2 Nitro or optional FOX 2.0 Performance Series shocks.

High Clearance Crossmemebers

BDS maximizes ground clearance with their heavy duty 1/4-inch thick laser cut perfect fit crossmembers. Paired with a front skid plate system that bolts together to create a rigid subframe while adding extra protection.

Heavy Duty Steering Knuckles

BDS corrects steering geometry at the new taller ride height using a pair of high-strength, CNC machined ductile cast iron steering knuckle design to work with replacement tie rod ends to maintain steering angles for proper function and ESC compatibility.

• Front Lift Method: Cross-Member
• Rear Lift Method: Block
• Shocks Included: Yes
• Front Lift Height: 4 inch
• Rear Lift Height: 4 inch

1. 18 inch wheels with 5-5.5 inch total backspacing should be test fir prior to mounting Tire to ensure proper clearance to BDS steering knuckle.
2. 18 inch or larger diameter wheels required. Stock 17 inch and 18 inch wheels cannot be reinstalled. Stock 20 inch wheels can be used with up to a 305/60-20 Tires.
3. E-brake bracket required for factory powersteps (123018)
4. Block kits replace factory 1-1/4 inch block.
5. Models with a 2-piece rear driveshaft may require carrier bearing drop shim kit #122406
6. Will not fit HD models (7 lug).

• High clearance crossmembers improve strength and offroad capability
• Heavy duty steering knuckles to correct steering geometry and maintain ESC system compatibility
• Top mounted strut spacers to provide lift and install easily
• Differential skid plate for improved offroad protection
• Rear lift blocks and u-bolts to lift and level the stance
• Standard NX2 Nitro shocks with vehicle-specific valving for better control
• Upgrade to FOX 2.0 Performance Series shocks for maximum performance on and off-road

Rear Lift Option

4 Inch Block Kit

• Level to tail high appearance

Tire Size: 35 x 12.5 Wheel Diameter: 20 x 9 Back Spacing: 5.5

Rear Shock Option

NX2 Nitro Series

• Nitrogen-charged
• Twin-tube design
• 10-stage velocity-sensitive valving
• Dual-welded ends for increased strength
• 1-3/8-inch high-flow piston
• Self-lubricating seals
• Silver powder coat finish

Kit Components:

• Includes one BDS013439, 2015-2020 Ford F150 4 inch Rear Block Kit, UPC Code 658848613557
• Includes one BDS023404, 2014-2020 Ford F150 4 Inch Spacer Box Kit, UPC Code 658848615636
• Includes one BDS023634, 2015-2020 Ford F150 Knuckle Box Kit - DS, UPC Code 658848615919
• Includes one BDS023635, 2015-2020 Ford F150 Knuckle Box Kit - PS, UPC Code 658848615926
• Includes one BDS023650, 2015-2020 Ford F150 Front Box Kit (1of2), UPC Code 658848615940
• Includes one BDS023651, 2015-2020 Ford F150 Front Box Kit (2of2), UPC Code 658848615957
• Includes two BDS85828, Shock- 30.95 x 18.20 x 2-3/8 - EB1/EB1, UPC Code 711745609877

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