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Fitted by application

Curt Spyder Gooseneck

An under-bed gooseneck hitch system for heavy trailers, with a ball that stows flat so the bed stays usable when the trailer is unhitched.

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A removable gooseneck hitch assembly with its ball, handle and under-bed bracket on a concrete floor

Curt Spyder Gooseneck at a glance

Under-bed gooseneck kit installed
$450–$1,300
Reinforcement brackets and frame work
$180–$520
Ball, safety-chain anchors and hardware
$120–$360
Installation labour on a heavy-duty chassis
$260–$600

What a Spyder gooseneck is

A Spyder-style gooseneck is an under-bed hitch system that puts the trailer pivot over the rear axle, which is the steadiest place to carry a heavy tongue load. When the trailer is unhitched, the ball stows flat or flips down so the bed floor stays open for cargo. That combination, heavy capacity and a usable bed, is why gooseneck setups dominate ranch, farm and hotshot work where the truck pulls one day and hauls the next.

  • Under-bed mounting with the pivot over the rear axle
  • A ball that stows flat when the trailer is unhitched
  • A stable platform for heavy ranch and farm trailers
A steel work bench holding gooseneck balls, receiver hitches and shackles on a concrete shop floor

Fitment by truck and bed

A gooseneck mounts through the bed and the frame, so the kit is built for a specific truck rather than a generic one. The under-bed reinforcement, the ball location and the bed cut all follow the chassis, and a short bed can limit where the pivot sits relative to the cab. We confirm the truck, the bed length and whether the frame already has the reinforcement points before a kit is chosen.

  • Ford F-250 and F-350 Super Duty across the bed lengths
  • Chevrolet Silverado 2500 and 3500 and GMC Sierra equivalents
  • RAM 2500 and 3500 in crew and mega cab bodies
  • Toyota Tundra for lighter gooseneck trailers
  • Ford F-150 and Chevrolet Silverado 1500 for light use
  • Nissan Frontier and Jeep Gladiator only where rated for it

How a Spyder gooseneck is fitted

An under-bed install is measured, drilled and reinforced before the ball is set, because the reinforcement is what carries the load into the frame.

  1. Weigh the truck's ratings against the trailer's pin weight first.

  2. Mark the pivot point set by the frame geometry on the bed floor.

  3. Bolt the under-bed reinforcement between the frame rails.

  4. Open the bed at the marked point and drop in the ball assembly.

  5. Torque every reinforcement and ball fastener to the mount points.

  6. Cycle the stow, then check the ball's torque after the first loaded pull.

What a Spyder gooseneck costs

The price of an under-bed gooseneck stacks the kit, the reinforcement and the labour, and it grows with the truck's weight class and whether the frame needs extra brackets. The figure varies with the bed length and the mount design. The price holds only once the truck itself is identified.

Under-bed gooseneck kit installed
$450–$1,300
Reinforcement brackets and frame work
$180–$520
Ball, safety-chain anchors and hardware
$120–$360
Installation labour on a heavy-duty chassis
$260–$600

What changes the gooseneck choice

Two heavy-duty trucks can need different gooseneck kits once the bed and the trailer are known. These are the variables that decide the kit before it is ordered.

  • The truck's gross weight and the trailer's pin weight
  • Bed length, which sets the ball position and cab clearance
  • Whether the frame already carries factory reinforcement
  • The stow style, whether the ball flips or lifts out
  • Whether a fifth-wheel plate is wanted on the same mount

Why the pivot sits over the rear axle

A gooseneck puts the trailer's weight almost directly over the rear axle, which is the strongest part of the frame and the place that best resists a heavy pin load. That placement is why a gooseneck rides more stably than a bumper hitch pulling the same trailer. It also means the bed has to be cut and reinforced in a specific spot, and that spot is set by the truck's own geometry rather than by preference.

Keeping the bed usable between jobs

The whole appeal of a gooseneck for a working truck is that it disappears when it is not needed. When the trailer is off, the ball stows flat and the bed goes back to carrying cargo, pallets or tools. A truck that pulls a stock trailer on Monday and hauls fence posts on Tuesday needs exactly that, which is why a stowable ball is worth choosing over a fixed one for a truck that lives a double life.

Confirming the truck before ordering

A gooseneck kit is cut for one chassis, so the truck is confirmed before the kit is ordered. Send the year, make, model, bed length and the trailer's pin weight, and we settle the kit, the reinforcement and the ball position against your truck's own geometry rather than against a generic fitment chart.

More parts we fit

The rest of the hardware, priced by application.

  • A folding portable tow bar with its arms and coupler laid out on a concrete work-shop floor

    Rambler-Style Tow Bar

    A folding tow bar for flat-towing a light 4x4 or car behind a motorhome, chosen by the towed vehicle's weight and the mounting points it can take.

    $280–$700 varies by truck, capacity and install

  • A recovery kit with bow shackles, a snatch strap, gloves and a storage bag spread on a concrete floor

    Factor 55 Recovery Gear

    Recovery hardware that keeps a winch pull safe — closed-system shackles, straps and rigging chosen by the truck's weight and the recovery it will do.

    $90–$260 varies by truck, capacity and install

  • Several gooseneck hitch balls of different diameters in a row on a concrete floor beside a steel caliper

    Gooseneck Ball Size

    A guide to gooseneck ball sizes and how to match the ball to the trailer's coupler, because the wrong size looks shut but lets go under a bump.

    $40–$140 varies by truck, capacity and install

  • A gooseneck trailer coupler lowered over a hitch ball on a concrete yard, showing the latch over the ball

    Gooseneck Trailer Ball Size

    How to read a gooseneck trailer's ball requirement from the trailer side — coupler markings, trailer weight and the ball rating that has to carry the pin load.

    $60–$220 varies by truck, capacity and install

  • An articulating off-road trailer coupler with a cast housing and a chrome ball caught in its jaws, on a concrete floor

    Off-Road Trailer Coupler

    A heavy-duty trailer coupler built for rough ground, chosen by the ball size, the trailer's weight and the latch that has to stay shut over rough trails.

    $140–$420 varies by truck, capacity and install

  • A standard gooseneck ball seated in its bed socket with a flip-down cover open on a concrete floor

    Standard Gooseneck Ball Size

    The standard gooseneck ball size explained — what counts as the common size, what it fits, and why a standard ball still has to be checked against the truck's rating.

    $40–$140 varies by truck, capacity and install

  • A weigh-safe gooseneck ball hitch with its integrated scale gauge, mounted in a truck bed on a concrete yard

    Weigh-Safe Gooseneck Ball

    A gooseneck ball with a built-in tongue-weight gauge, so you can see the pin load on the ball before you tow rather than guess at it from a chart.

    $280–$620 varies by truck, capacity and install

The areas we cover

Hitches, towing, recovery and commercial upfit.

  • A commercial work truck with a service body and a ladder rack parked in a concrete upfit bay

    Commercial and Fleet Truck Upfitting

    Commercial and fleet truck upfitting that turns a bare chassis into a working vehicle — service bodies, racks, bins, lighting and the wiring that ties them together.

  • A gooseneck ball hitch installed in an open truck bed with a folded-down center ball and crimson safety-chain anchors

    Gooseneck, Fifth-Wheel and Receiver Hitches

    Gooseneck, fifth-wheel and receiver hitches for trucks that pull — chosen by class and application, not by the shape of the receiver alone, because the truck and the trailer set the real limit together.

  • A heavy-duty receiver hitch and drop ball mount with a trailer coupler latched on, seen from below a work truck

    Off-Road Towing Hitches, Tow Bars and Couplers

    Receiver hitches, off-road tow bars and trailer couplers sized to the truck and the trailer it pulls, with the ratings checked before a class or a coupler is chosen.

  • A spooled recovery winch drum with synthetic rope and a steel hook, resting on a steel work bench in a shop

    Winches, Control Boxes and Recovery Gear

    Winches, control boxes and recovery gear fitted and wired to pull a stuck truck out safely, matched to the truck's weight and the pull it will actually make.

Commercial and fleet upfitting

Turning a chassis into a working truck.

How-to and cost guides

Plain answers before you commit to a job.

  • How to Mount a Gooseneck Hitch

    Mounting a gooseneck hitch means cutting an opening in the bed floor over the rear axle, fitting reinforcement below the bed to the frame rails, and setting a ball and its mechanism so the trailer pivots over the strongest part of the truck.

  • Tow Ratings and Capacities Explained

    A tow rating is a set of limits that all apply at once, and the one you can actually use is the lowest of them.

  • Winch Recovery Basics

    A winch recovery is a controlled pull with a strong line and a rated anchor, done slowly enough that nothing breaks and nobody stands in the path.

From the bay

A concrete fleet yard of upfit service bodies and racks on an overcast day
A steel work bench holding gooseneck balls, receiver hitches and shackles on a concrete shop floor
A front winch, steel plate bumper and stowed recovery gear staged on a concrete apron

Questions about this part

Will the ball leave the bed usable?

Yes. A Spyder-style gooseneck stows the ball flat or flips it down when the trailer is unhitched, so the bed floor goes back to carrying cargo. That is the main reason a working truck chooses a stowable gooseneck over a fixed one.

Do you have to cut the bed?

Yes, an under-bed gooseneck is mounted through the bed floor. The cut is measured over the rear axle and reinforced to the frame so the load goes into the chassis. The cut is planned before drilling, and the mechanism covers it when the ball is stowed.

What pin weight can it carry?

That depends on the truck's ratings as much as the kit. The gooseneck hardware may carry a high pin weight while the truck's payload and rear-axle rating set the real ceiling. We check the ball, the truck and the trailer together and quote to the lowest.

Can a fifth-wheel plate ride on the gooseneck mount?

On many kits, yes, a rail system lets a gooseneck ball and a fifth-wheel plate share related mounting points. Whether that fits your truck comes down to the chassis. Say you want both and the mount gets planned around it.

Will a short bed change the fitment?

It can. A short bed limits how far back the pivot can sit, which affects cab clearance when you turn a tall trailer. We confirm the bed length and the trailer's shape before choosing the kit, so the mount clears the cab on a full-lock turn.

What does an under-bed gooseneck cost installed?

A kit fitted runs from about $450 to $1,300, with reinforcement brackets and frame work adding more on a heavier chassis. The figure varies with the bed length and the mount design, so every number is a range.

Why Valley trucks are fitted here

  • Ratings confirmed against your truck and trailer before anything is quoted.
  • A written estimate that separates the hardware, the mount and the labour.
  • Winch, recovery and upfit hardware fitted and wired, never just sold.
  • Prices shown as ranges that vary, never as a made-up fixed number.

Related pages

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