Ford F550 Severe Duty Stage 2

Startracks Severe Duty F-550 Stage 2 trucks are built with military technology for civilian applications for extreme traction, stability, high payload capabilities and clearance in a low profile truck. These powerful trucks are available in all colors and with and without any body style. Designed as a replacement for the Hummer H1 and the Unimog U300, these are “America’s Ultimate Truck.” Battle proven components that will be working hard for years to come! Now Available in 6×6 Wheel Drive!

Ford F550 Upgraded to Severe Duty Stage 2

Severe Duty Stage 2 Upgrades:

  • F550 4×4 or 6×6, wheelbases available from 141 – 201″ wheel bases 6×6 available on 165″ or 182″ wheelbase.
  • 6.7L Power Stroke™ Turbo Diesel or
    6.2L 2-Valve V8 Gas (FFV)
  • 22,500 GVWR Rated Axles available
  • 12,000 lb rated, Dana 80 Ford front axle available Installed with No suspension lifting required
  • 14,000 lb Ford Dana 130 rear axle
  • (4) 20 x 10 Aluminum, 3 piece, powder-coated or polished wheels
  • Dual caliper front brakes available
  • (4) 365 80 R20 tires, 44″ tall or 335 80 R 20 tires, 42″ tall, Goodyear or Continental available
  • Optional internal bead-locks with runflats in each wheel, mounted and balanced
  • HD replacement front and rear sway bars with double capacity available
  • Factory replacement fenders clear a 42′ tire with no lift kit required.
  • Bolt on gear reduction hubs with 4″ more ground clearance available.
  • Central Tire Inflation system with 28-32 CFM engine driven air system available.

Gear Reduction Axles: The F550 Severe Duty Stage 2 upgrade includes the following: Bolt on geared hub sets front and rear. These gear reduction hubs match the increased tire size, speedometer, ABS and TCM computers perfectly. This not only removes up to 50% of the torque load off of the drivetrain it also provides the same factory power levels and transmission shift points as the stock F550 with the bigger tires installed. The gearbox hubs provide up to 4 inches of axle clearance above the factory trucks ground clearance. Everything we install is maintained under our 1 year 12,000 mile warranty and is serviceable at any Ford dealer worldwide.

Heavy Duty Front Axle: Our “All Ford” parts Dana 80 front axle is rated at 12,000 pounds capacity and can bolt into the F550 with no lift on the trucks suspension at all. It is serviceable at any Ford dealer worldwide and can be used as a factory replacement straight axle. It can also be mounted with the bolt on geared hubs as mentioned above.

CTIS System: Includes an on board engine driven roots style air compressor, it has 22 to 38 CFM, depending upon RPM. In cab controls makeup a complete system to air the tires up and down at will. The central tire inflation system will air the tires up from 15 psi to full inflation in 4 minutes, double the military standard.

Wheels and Tires: The wheels are 3 piece aluminum 20 x 10 with a powder coated steel plate center in the F550 reversible bolt pattern. They flip from front to rear to provide an exact same track in the rear. They come stamped DOT approved and are rated at 13,000 pounds per wheel and 8000 pounds per tire. Options include the 3 piece bolt together run flat/bead lock insert, and the 335 80R 20 Continental MPT 81 tire. Or you can order any of these as separate units, mounting and balancing.

F550 Stage 2 Extreme Quick Attack Mini Pumper

F550 Stage 2 Extreme Brush Fire Truck

Various 6 Wheel Drive Builds

Ford F-550 Lariat 6×6 with Three-Way Tilting Bed

Fenders, Wheels and Tires

Mailing Address


Custom Duty Specialty Vehicles
1800 Markel Ave
Elkhart, IN 46517-1322
Phone: 574-596-5331

Hours: 8am to 5pm Weekdays
or by Special Appointment.

Because custom builds vary, some are more complex than others. Due to this, there isn’t any standard price sheet available for cost review. Each truck build requires customer provided specifications, type of frame and components, and other details for an accurate quote. We are sorry for the inconvenience and sometimes frustration for lack of transparent pricing in this industry.

Startracks Trucks is a dealer for 6×6 extreme-duty service trucks that reliably perform. With unmatched versatility, the Stage 1 or Stage 2 can accommodate an endless variety of service bodies suited to a range of configurations for emergency vehicles, medical clinics, utility trucks, border protection, firefighting environments, and any other extreme terrain application. We also represent the latest in the severe duty, electric chassis / platform precisely engineered to exceed any current technologies.

Startracks Trucks builds custom trucks to suite the most discriminating buyers who are seeking the best in current design trends and technologies. We are excited to help take truck technology to the next level both in terms of performance and exclusivity. We are building trucks that are designed, tested and proven to perform day-in and day-out. Through the integration of innovations and technologies, we’re continually striving to improve the safety, efficiency and operability of all of our trucks.

Startracks Trucks has served our neighbors, community and country for over 35 years. We understand the pursuits and ambitions of our many diverse customers and we aim to facilitate their travel by providing high quality solutions. Startracks Trucks is committed to providing extreme-duty service trucks that reliably perform the toughest standards. Explore your world without compromise in a our custom trucks, specifically engineered to out-perform duty and cycle.