Hellwig #6400 Ford F250 / F350 air helper spring kits give you the benefit of better handling and control under heavily loaded conditions. These air helper springs are installed between the frame of Ford F250 / F350 and the suspension, providing load support through the use of air pressure. Heavy duty brackets, higher test pressure and a longer stroke make Hellwig #6400 air helper springs the superior choice.
Features
- Hellwig # 6400 is custom fit for the Ford F250 / F350
- Lifetime warranty on brackets, 2 year warranty on air springs
- Custom for air helper springs for the Ford F250 / F350
- Heavy duty brackets
- Virtually eliminates sagging springs
- 5000 lbs level load capacity
- Fully adjustable in order to insure improved leveling control
- Simple bolt-on installation
| Download Instructions | #6400 Instructions |
| Level Load Capacity: | 5,000 lbs |
| Average Install Time: | 1 to 2 hours |
| Front or Rear Axle: | REAR |
| Drilling Required (Yes or No): | YES |
Note: Never load vehicle beyond the manufacturer's maximum gross vehicle weight rating.
Fits the Following Model:
Ford F350 2wd & 4wd (dual wheel)
Fits the Following Years:
99, 00, 01, 02, 03, 04, 05, 06, 07, 08, 09, 10
1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010

