Superlift 15-18 Ford F-150 4WD 4.5-6in Lift Kit - Crossmembers Component Box

Superlift 9948 Crossmembers Component Box for 2015-2020 Ford F-150 4WD 4.5 to 6 Inch Lift Kit

The Superlift 9948 Crossmembers Component Box provides the fabricated steel front and rear crossmember assemblies required when completing a 4.5 to 6 inch Superlift lift kit on 2015-2020 Ford F-150 4WD SuperCab and SuperCrew trucks. These laser-cut, CNC-formed crossmembers reinforce the underbody structure and are sold separately as a component box (9948) for customers building or completing a multi-box Superlift lift system for their F-150.

Features and Benefits

• Laser-cut, CNC-formed heavy-gauge fabricated steel construction for maximum structural rigidity
• One-piece front and rear crossmember design for simplified installation
• Durable black powder coat finish resists corrosion and off-road abrasion
• Designed to work with Superlift multi-box lift systems for 2015-2020 F-150 4WD
• Strengthens the underbody and protects differential area during off-road use
• California Prop 65 warning applies
• Limited Lifetime Warranty from Superlift

Fitment Table

Specifications

What Is Included

• Front and rear fabricated steel crossmember assemblies
• Hardware for installation

Frequently Asked Questions

What is the Superlift 9948 component box?
The 9948 is the crossmembers component box that is part of Superlift's multi-box 4.5-6 inch lift kit system for 2015-2020 Ford F-150 4WD models. It contains the fabricated steel front and rear crossmember assemblies.

Does the 9948 work as a standalone lift kit?
No. The 9948 is one box in a multi-box Superlift lift system. It must be used in conjunction with other Superlift component boxes (such as knuckles and strut spacers) to complete the full lift installation.

Which Superlift kits use the 9948 crossmembers box?
The 9948 is a component of Superlift's K126, K126B, K127, K127B, and related complete lift kit systems for the 2015-2020 Ford F-150 4WD.

Does this fit the Ford F-150 Raptor?
No. The Superlift 9948 is designed for standard 4WD F-150 SuperCab and SuperCrew models. It does not fit the Raptor.

What lift height does this support?
When combined with the appropriate companion component boxes, the full system provides 4.5 to 6 inches of front and rear lift height.

Does the Superlift 9948 require cutting or welding?
No. The crossmembers are direct bolt-on components designed for no-weld installation when used with the complete Superlift lift kit system.

What is the warranty on Superlift lift kit components?
Superlift covers these components with a Limited Lifetime Warranty against manufacturing defects.

Does California Prop 65 apply to this product?
Yes. This product contains chemicals known to the State of California to cause cancer or reproductive harm. See Prop 65 warning for details.

Installation Instructions

1. Review all Superlift instructions for your specific complete kit number before beginning.
2. Safely raise and support the vehicle on a lift or jack stands; chock wheels.
3. Remove front skid plates and any underbody components that interfere with crossmember access.
4. Remove factory front crossmember if applicable per kit instructions.
5. Position the Superlift front crossmember into place and start all supplied bolts by hand.
6. Position the rear crossmember into place and start all supplied bolts by hand.
7. Torque all crossmember mounting bolts to the specified values in the Superlift instruction sheet.
8. Reinstall skid plates and underbody components.
9. Complete all remaining steps per your Superlift complete kit instructions.
10. Have alignment checked and adjusted after installation.

Prop 65 Warning: WARNING: This product can expose you to chemicals including lead and other compounds, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.