New Load King Flips/Converter Dollies/Jeeps Trailers For Sale
Shop new Load King flips, converter dollies, and jeeps built for heavy haul setups, bridge compliance, axle flexibility, and payload distribution.
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About New Load King Flips/Converter Dollies/Jeeps Trailers
For Load King units in this category, common decision points include single-axle configuration, 27,500-lb axle ratings, axle spacing around 54-1/2 inches to 60 inches, and overall widths such as 102 inches or 9 feet. Air ride suspension is common, with Hendrickson systems showing up frequently in heavy haul applications because ride quality and load protection matter when hauling concentrated weight. Tire packages such as 255/70R22.5 or 275/70R22.5 are also typical, and wheel spec matters more than some buyers expect because outside aluminum wheels can affect serviceability, appearance, and tare weight. On flip axles, details like upper support brackets, leveling valves, wiring plugs, strobe and battery backup light packages, and D-rings can make a real difference in day-to-day use.
The most important buying step is confirming compatibility with the trailer series and intended tonnage. A flip axle built for a 55-ton detachable may not be the right match for a 60-ton platform or for a different neck and deck geometry. Width, suspension setup, ride height, axle spacing, connection points, and brake and lighting integration all need to line up. Buyers running regional heavy haul should also think about how often the axle will be installed and removed, how permit offices in their lanes count axle groups, and whether an intermediate flip or jeep will improve flexibility on varying machine weights. If the work includes excavators, crushers, transformers, or other concentrated loads, the attachment needs to be selected as part of the whole combination, not as a standalone spec.
New Load King heavy haul attachments are typically chosen by operators who want clean matching equipment, current lighting and suspension components, and factory-aligned fit with Load King lowboy and detachable trailer platforms. For many fleets, the value is in legal payload flexibility. A correctly spec'd flip, converter dolly, or jeep can help carry more load, distribute weight more effectively, and reduce the need to reconfigure around every job. Buyers comparing listings should pay close attention to axle rating, axle spacing, suspension brand, tire size, width, and the trailer series the component was designed to work with, because those details determine whether the unit improves capacity on paper and in the field.
Frequently Asked Questions
What is the difference between a flip axle, a jeep, and a converter dolly?
A flip axle is a removable axle group that attaches to the rear of a heavy haul trailer to add capacity and improve weight distribution. A jeep is installed between the tractor and the trailer, usually ahead of the lowboy, to shift weight off the tractor and into another axle group. A converter dolly is a towing component that supports and connects additional trailer sections in a combination. Each serves a different purpose in axle grouping, bridge compliance, and permit strategy.
How do I know if a Load King flip or jeep will work with my trailer?
The key factors are trailer series, rated capacity, frame geometry, connection design, width, ride height, suspension type, and axle spacing. A unit built for one Load King 55-ton or Signature Series configuration may not correctly fit another trailer or deliver the intended weight distribution. Buyers should verify the component was designed for the same trailer family and confirm brake, lighting, and mechanical connection details before purchase.
Why does axle spacing matter on flips and jeeps?
Axle spacing affects bridge formula calculations, permit approval, turning characteristics, and how the load is distributed across the full combination. Spacing differences such as 54-1/2 inches versus 60 inches can change how a state classifies the axle group and how much weight can be legally carried on a route. It also affects how the trailer tracks and how concentrated loads sit over the suspension.
Is air ride suspension standard on heavy haul flip axles?
Air ride suspension is very common on modern heavy haul flip axles because it helps protect the load, improves ride quality, and can simplify leveling across the combination. Systems from suppliers like Hendrickson are often preferred for service support and durability. The exact suspension spec still needs to match the trailer and the type of freight being hauled, especially on high-center-of-gravity or concentrated-weight loads.
What specs should I compare first when shopping this category?
Start with the intended trailer application, axle rating, width, axle spacing, suspension brand, tire size, and wheel configuration. Then look at practical features such as lighting packages, wiring connections, D-rings, support brackets, and leveling components. These specs determine legal compatibility, maintenance requirements, and how useful the attachment will be in regular heavy haul work.