TRIPLE - DUAL WHEEL GOOSENECK TRAILER
Model: FMAX310
Outfitted with triple 10,000lb axles work quickly becomes a past tense situation for the FMAX310.
Build Your Own TrailerEngineered to Deliver
We design, engineer, and build our own I-Beams. Our U.S. Patent Protected Engineered Beam design allows us to have an almost infinite control over the shape of the beams. We’re able to optimize the performance of the steel by putting it to work where we need it most. No dead weight. No added reinforcements needed. Our beams are the tallest and strongest in gooseneck trailers, with the best strength-to-weight ratios on the road.

FMAX310

Standard Features
30,000 lb GVWR. Choose from 25′ – 44′ length. Features a 16″ or 18″ Low Profile Engineered Beam Frame and 3 – 10,000 lb Lippert Axles.

Upgrades
Popular upgrades include: Deck on the Neck, Sway Control, and Air Ride Suspension. Choose between Max Ramps, 12′ Hydraulic Dovetail, or Straight Deck with Ramps.

- The Neck – Curves distribute force throughout the neck so there is no concentration of stress in corners like traditional goosenecks.
- The Deck – It’s low profile for easy access. Tire-covers are HD 3/16” diamond plate. Boards are capped at each end of the deck for added durability.
- The Camber – The deck and frame have a slight camber when not loaded. When loaded, it flexes as necessary to level but never sags like traditional goosenecks.
- The Lace-rail – Channel-Iron for durability and versatility with no notches or cut-outs for maximum strength. Includes stake-pockets and pipe-spools.
- The Box – It’s big and roomy. The lid is curved for added rigidity and gas spring assisted for easy operation.
- The Steps – The retractable front deck steps solve the common issue of traditional front deck steps being bent in low clearance situations. The mid-deck side turn signal step makes for easy access when equipment is loaded.
- The I-Beams – We engineer the beams, optimize them, and build them for each trailer configuration just like semi trailer manufacturers have been for decades. Our I-beam frames are taller, stronger, and lighter than your neighbor’s. 14-18” tall. Standard steel bends at 36 ksi. Our beams are built using steel rated at 50 ksi minimum.

Fleetneck Engineered Beam
Thank you for considering a Fleetneck. We respect the money that you’ll spend on a gooseneck trailer and yearn to make sure that our trailer is one that takes good care of you for years to come.
12' Hydraulic Dovetail
12’ long with easy to climb, 12.5 degree approach angle. Blackwood rubber-infused runners for traction. Automatic latch for easy operation. Includes wireless remote control.
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Finance Your Trailer
Finance a brand new FMAX310 with interest rates as low as 6.99% through our financing partner Sheffield Financial.

Quality You Can Trust
Every Diamond C Trailer comes with an industry leading 3 year warranty. We are proud of our trailers and stand by them. Find out more here.