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SKU: FTS22309 | UPC: 674866108417
Fabtech 2017-2026 Ford F-250/F-350 Super Duty 4WD Diesel 4in Rear Box Kit
Fabtech 4in Rear Box Kit upgrades the rear suspension on 2017-2026 Ford F-250/F-350 Super Duty 4WD diesel trucks with a 5in lift block, bump stop brackets, and Dirt Logic 2.25in shocks. This bolt-on kit centers the axle and balances the ride for daily driving and off-road demands. Paired with Fabtech front systems, it maintains near-zero caster change for stable control.
Key Features
- Dirt Logic 2.25in Shocks: Stainless steel body and NitroSteel rod resist corrosion while valved for firm on-road control and rugged off-road damping on Super Duty trucks
- 5in Lift Block: Provides exact 4in rear lift to level the truck after front coilover install, with integrated bump stop relocation for full suspension travel
- Bump Stop Brackets: Relocates factory bump stops to prevent damage during heavy articulation and load carrying
- Bolt-On Design: Direct fit for 2017-2026 F-250/F-350 4WD diesel with no cutting or welding required for fast install
- 5-Year Warranty: Backed by 60,000-mile coverage for long-term reliability in demanding conditions
Product Notes
- Requires Fabtech front Dirt Logic 4.0 coilover or radius arm system for complete 4in lift
- Shocks tuned specifically for diesel Super Duty weight and payload
- Packaged for protection during transit with all hardware included
Installation Notes
- Professional installation recommended.
- Bolt-on process takes 2-4 hours with basic tools and jack stands
- All necessary brackets and hardware provided for direct factory replacement
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2017-2026 | Ford | F-250 Super Duty | King Ranch, Lariat, Platinum, XL, XLT |
| 2018-2024 | Ford | F-250 Super Duty | Limited |
| 2017-2026 | Ford | F-350 Super Duty | King Ranch, Lariat, Platinum, XL, XLT |
| 2018-2024 | Ford | F-350 Super Duty | Limited |
Why Choose Fabtech?
- Engineered suspension systems built for Ford Super Duty since 1992
- Stainless steel components ensure durability in harsh environments
- Precision design maintains factory geometry for safe handling
Frequently Asked Questions
- Q: Will this kit fit gas engine Super Duty models?
- A: Designed exclusively for 4WD diesel F-250/F-350 Super Duty due to specific rear axle and weight tuning
- Q: What material are the shocks made from?
- A: Dirt Logic 2.25in shocks feature stainless steel bodies and NitroSteel piston rods for maximum corrosion resistance
- Q: What is the warranty on this kit?
- A: Complete system covered by Fabtech 5-year/60,000-mile warranty when installed per instructions
Shipping & Handling
- Method: UPS Ground
- Availability: In stock - ships same or next business day
- Packaging: Single box dimensions 31in x 17in x 7in
- Weight: 52 lbs
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