Load King Flips/Converter Dollies/Jeeps Trailers For Sale

Load King flips, converter dollies, and jeeps are purpose-built components for heavy haul trailer configurations where axle count, bridge spacing, and steerable load distribution matter as much as deck capacity. In this category, buyers are typically matching a jeep or flip axle to a lowboy, detachable gooseneck, or specialized platform trailer to meet state permit requirements and improve legal payload options. A flip axle, sometimes called a flip, is commonly added to the rear of a lowboy to increase carrying capacity and spread weight across more axles. A jeep sits between the tractor and trailer and shifts part of the loaded weight forward, often helping with steer axle and drive axle compliance on severe-duty applications. Converter dollies serve a different role, usually adapting one trailer section to another or creating a towable axle group depending on the operation.

The most important buying decision is compatibility with the trailer you already run. That means looking closely at ton rating, axle spacing, connection style, loaded deck height impact, suspension type, brake package, and tire size. Load King units in this class are often spec'd for 55-ton to 60-ton work, with common configurations including single-axle flips, intermediate flips, and heavy-duty jeeps designed around permit loads and route-specific bridge formulas. Air ride suspensions such as Hendrickson setups are common for ride quality and load protection, while drum brakes remain widely used for serviceability and parts availability in heavy haul fleets. Tire sizes like 255/70R22.5 are also common in this category because they balance packaging, replacement availability, and axle group height.

Material and wheel spec also deserve attention because these components live in punishing conditions. Steel construction is standard for durability and repairability, especially on equipment that sees concentrated loads, rough approaches, and frequent pinning and unpinning. Buyers should also look at inner and outer wheel combinations, D-ring placement, airline and electrical routing, and how the unit handles in tight jobsite or staging-yard conditions. On a flip axle, axle spacing and overall added length can directly affect permit strategy and maneuverability. On a jeep, kingpin setting, fifth wheel height, drawbar length, and steer axle transfer are critical because a bad match can create legal problems even if the hardware physically hooks up.

For buyers comparing Load King units, the real question is not just rated capacity but how the component fits into the complete haul system. A properly matched flip, converter dolly, or jeep can turn a trailer into a more versatile heavy haul platform, reduce the number of permit restrictions on certain routes, and improve axle loading without stepping up to a completely different trailer. The best spec is usually the one that matches your existing neck, deck, axle group, and freight profile, while keeping parts support straightforward for brakes, suspension, hubs, and tires. If the work includes machinery, transformers, structural steel, or concentrated construction loads, these trailer components are often the difference between a legal workable setup and one that leaves payload on the table.