Shipping a Custom Diesel Truck: Open or Enclosed, and Everything Else That Matters

A stock half-ton is a straightforward auto transport job. A built diesel truck, on the other hand, is a different conversation. Lift kit, aftermarket bumpers, wide tires, a bed full of added weight — each modification that makes the truck more capable on the road creates a variable the car shipping carrier has to account for. It’s crucial to get those variables right at the time of booking; otherwise you could be dealing with a driver who shows up without the right equipment, or worse, a truck that simply doesn’t fit on the trailer.

Here’s what actually matters when shipping a custom rig:

The Open vs. Enclosed Question (It’s Not as Simple as It Sounds)

The default answer for most high-value vehicles is enclosed transport. More protection, less exposure, peace of mind. But for a custom diesel truck, the answer is more complicated.

Standard enclosed trailers — the type that handles most luxury cars and collector vehicles — typically have 7’6″ to 8′ of interior clearance. A full-size diesel truck with a 6-inch lift and 37-inch tires can push 7 feet or taller before you factor in anything on the bed. Once you add a bed cap, a roof rack, or an exhaust stack, you’ve ruled out the majority of enclosed carriers, and you haven’t even started making calls.

This doesn’t mean enclosed transport is off the table. Specialized single-vehicle enclosed flatbeds often have taller clearances and can handle lifted trucks. But the carrier pool is significantly smaller, which affects both availability and price. Expect to pay a meaningful premium over standard enclosed rates, and expect a longer window to find the right carrier.

Open transport handles height without issue. A lifted truck loads and unloads better than a lowered car — more ground clearance means the driver has more room to work on the loading ramps. The tradeoff is exposure to road debris, weather, and road film over the course of the haul. On a daily driver that already has rock chips on the hood, this doesn’t matter much. On a fresh paint or wrap, it matters more.

For most custom diesel trucks, open transport is the practical call unless the build specifically warrants otherwise.

What You Have to Disclose at Booking

This is where a lot of custom truck owners lose time. Failing to disclose modifications upfront often results in the carrier showing up, assessing the truck, and either turning down the job or adding fees on the spot.

Tell your broker upfront:

Height. Measure from the ground to the highest point on the truck. Include anything on the bed — a cap, a topper, a fifth-wheel hitch, an exhaust stack. If you’re not sure, measure twice. A truck that’s a few inches taller than disclosed can be enough to cause a problem at pickup.

Width. Aftermarket bumpers that extend beyond the stock fenders, wide-body flares, and side steps or running boards can all add to a truck’s overall width. Most carriers can handle standard truck widths, but knowing the actual measurement helps them position the truck correctly on the trailer.

Weight. Diesel engines are heavier than gas engines to begin with. Add a heavy aftermarket front bumper, a winch, an auxiliary fuel tank, a loaded toolbox, or any significant bed equipment, and the truck’s curb weight climbs fast. Some full-size diesel builds push 9,000 to 10,000 pounds or more. Carriers need accurate weight estimates for load planning.

Running condition. Custom trucks — especially older builds or project rigs mid-restoration — sometimes have issues that affect loading. Soft brakes, stiff steering, electrical gremlins, a low-clearance oil cooler. Flag anything that could be a problem before the driver gets there.

Insurance on a Built Truck

Standard carrier cargo policies are designed around standard vehicle values. A stock Ram 3500 has an established market value. A Ram 3500 with a full Duramax swap, a custom fabricated suspension lift, a $4,000 front bumper, and a bed-mounted air compressor setup does not.

Ask your broker for the carrier’s Certificate of Insurance and check the coverage limit before you commit. If the limit doesn’t cover the truck’s actual value — purchase price plus the cost of modifications — ask about supplemental coverage options. Some car shippers offer gap coverage as an add-on, while others can direct you to third-party transit insurance. Either way, make sure you know what the policy covers and what it doesn’t before the truck leaves your driveway.

Also, make sure to document the truck thoroughly before pickup. Photos of every panel, all four corners, the undercarriage, the bed, and any areas with existing wear. Video works well for this. The Bill of Lading the driver completes at pickup is the official record, but your videso or photos provide real evidence if anything is disputed at delivery.

Finding a Car Shipper Who Can Handle It

Not every auto transport company has access to carriers experienced with modified trucks. A company with a large, well-maintained carrier network has more options for matching your specific build to a driver who’s done this before.

RoadRunner Auto Transport works with a network of 14,000+ FMCSA and DOT-compliant carriers and handles custom and oversized vehicles including lifted trucks, dually configurations, and specialty diesel builds. No deposit is required until a carrier is confirmed, and you can run an instant quote through their car shipping calculator in under a minute. Give them the accurate height, width, and weight figures and they can match your truck to the right carrier rather than the closest available one.

One More Thing

Remove anything from the bed or cab that isn’t bolted down. Tools, tow straps, gear bags, spare fluids — all of it. Carriers aren’t responsible for loose items, and unsecured weight shifting in transit can damage both the bed and whatever’s in it. If you have a heavy toolbox or auxiliary tank that’s genuinely bolted to the bed, that’s fine. Anything that isn’t secured should come out before pickup.

Custom trucks take time and money to build. Spending 20 minutes at booking to get the details right is the cheapest insurance you can buy.