Top 10 Truck Camper Mistakes and Pitfalls

“Only a fool learns from his own mistakes. The wise man learns from the mistakes of others.”

Few sayings are more applicable to truck camper ownership. Unlike conventional RVs, truck campers don’t have their own chassis, wheels, or drivetrain. Instead, they ride in the bed of a pickup truck, offering unmatched versatility, off-road capability, and convenience. But that unique design also comes with its own set of challenges. From loading and weight distribution issues to clearance mishaps and simple lapses in judgment, truck camper owners regularly encounter mistakes that can lead to costly repairs, damaged equipment, ruined trips, and more than a little embarrassment.

If you’ve ever watched an RV owner wedge an oversized rig into a tunnel that was clearly too small, you know how quickly a bad decision can turn into an expensive lesson. One memorable example involved a fifth-wheel owner attempting to navigate a narrow tunnel on South Dakota’s Needles Highway. The result? A destroyed air conditioner, thousands of dollars in damage, and a traffic jam that lasted for hours. While truck campers are generally more compact and maneuverable, their owners aren’t immune to similar blunders.

The good news is that most truck camper mistakes are entirely preventable. Whether you’re a first-time owner or a seasoned veteran, learning from the experiences of others can save you time, money, frustration, and a few red-faced moments along the way. To help you avoid the most common pitfalls, we’ve compiled our list of the Top 10 Truck Camper Mistakes and Pitfalls—and how to make sure they never happen to you.

1. Exceeding your truck’s GVWR and payload rating

Overloading the truck is one of the most common—and serious—mistakes truck camper owners make. Many end up exceeding their truck’s payload capacity and GVWR without even realizing it, which is neither safe nor responsible. A frequent question is why not simply start with a properly rated truck in the first place?

While upgrades like higher-rated tires, larger wheels, or helper springs can improve handling and support, they do not actually increase a truck’s certified GVWR or payload capacity. Those limits are set by the manufacturer and displayed on the door jamb sticker, and in most cases, only the manufacturer (or a very limited number of authorized upfitters) can legally change them.

Ignoring those ratings can have serious consequences. In the event of an accident, being significantly over weight can create major liability issues and may jeopardize insurance coverage, especially if injuries are involved. For that reason, it’s always best to stay within the truck’s rated limits—or invest in a properly equipped vehicle with a higher GVWR if needed. In some cases, that may mean stepping up to a heavier-duty platform such as an F-450/4500 or F-550/5500.

2. Buying unnecessary suspension mods

This is a truck camper mistake we see all the time. Before spending money on suspension upgrades, it’s important to first test how your truck actually performs with your camper installed. Otherwise, you risk investing in parts you may not need at all.

Too often, new or prospective truck camper owners rush out to install suspension upgrades like shocks, air bags, and sway bars—sometimes even before they’ve purchased a camper or taken their first proper trip. It’s a classic case of putting the cart before the horse, and it shows up frequently in truck camper forums and discussions.

The smarter approach is to evaluate how your truck handles under real-world conditions first. Once the camper is loaded, pay attention to specific issues like porpoising, rear-end sag, or body sway. If problems appear, then you can target them with the appropriate, purpose-driven suspension upgrades instead of guessing in advance.

3. Over tightening turnbuckles

Overtightening turnbuckles is one of the most common truck camper mistakes—and one that can lead to expensive damage. For some reason, many owners believe tighter is always better when securing their camper. In reality, applying excessive tension can do more harm than good. Overtightened turnbuckles can pull anchor bolts and mounting plates right out of the camper’s wings, resulting in costly repairs and potentially compromising the camper’s structural integrity.

Instead, always follow the turnbuckle manufacturer’s recommended tension settings. For example, Torklift FastGuns feature a built-in tension indicator designed to take the guesswork out of proper adjustment. The system uses a rubber O-ring that is positioned against the bottom of the FastGun housing before the lever is locked. When the lever is closed, a gap of approximately 1/4-inch between the O-ring and the housing indicates the correct amount of tension.

It’s also important to use spring-loaded turnbuckles whenever possible. These systems help absorb shock loads caused by potholes, rough roads, and sudden impacts. Without that built-in flexibility, the forces generated while driving can be transferred directly to the camper’s tie-down points, increasing the risk of damage to both the camper and the truck.

4. Buying a diesel-equipped 3/4-ton truck

Another major truck camper gaffe made by both newbies and pros alike. Hey, we get it. Diesels are cool. They offer an impressive amount of torque, excellent towing performance, strong resale value, and better fuel economy than their gasoline counterparts. However, if you’re planning to carry a truck camper and want a diesel engine, you’re usually better off starting with a one-ton truck. Why? Payload capacity. Most diesel engines add roughly 700 to 800 pounds compared to a gas engine. Since that extra weight counts against the truck’s Gross Vehicle Weight Rating (GVWR), it directly reduces the amount of payload available for your camper, passengers, gear, and supplies. A 3/4-ton truck may already have limited payload capacity for truck camper duty. Add a diesel engine, and a truck with a 3,000-pound payload rating might suddenly have only 2,200 pounds available. A truck rated for 2,000 pounds of payload could drop to just 1,200 pounds. That’s a significant reduction.

What’s the bottom line? If you want the benefits of a diesel engine and plan to carry a truck camper, a one-ton truck will usually provide the payload capacity needed to do so safely and comfortably.

5. Off-roading in dual rear wheel trucks

Yes, we know—a dual rear wheel truck can absolutely be driven off-road. In fact, a dually carrying a truck camper can access an impressive number of remote campsites and backcountry destinations. But there are limitations, the biggest of which is that extra set of wheels in the rear. Snow, mud, and rocks can become lodged between the dual tires, potentially leading to either a loss of traction or even a flat tire. A dually’s wider stance also presents challenges on narrow roads and trails, where trees, brush, and rocks can quickly become expensive obstacles.

For these reasons, dually owners are generally wise to avoid deep mud, soft sand, technical rock crawling, and heavily overgrown routes. On the other hand, if your goal is reaching remote boondocking spots via wide, well-maintained dirt roads and backcountry tracks, a dual rear wheel truck is often more than capable. The key is understanding your rig’s limitations and choosing routes that match its size and width.

6. Ignoring a “bad” center of gravity

Overloading your truck is bad enough. Couple that truck camper mistake with a “bad” center of gravity and you have a recipe for disaster. What is the center of gravity (COG)? It’s simply the balance point or where most of the truck camper’s weight sits. Typically, the COG is marked with a sticker that has been affixed to both the driver and passenger sides of the camper.

Ideally, the camper’s COG of gravity should be located in front of your truck’s rear axle—in most cases 10 to 20 percent of the weight will be on the front axle and 80-90 percent on the rear axle. Doing this ensures a safer driving experience and less wear and tear on the frame of your truck. Furthermore, placing the COG behind the rear axle should be avoided at all costs because it does two things. First, it takes weight off of the front axle, creating “drivability” issues with steering and braking. Second, tension is created in the center of the frame that can result in a catastrophic frame failure. For more about how to correct a “bad” COG, click here.

7. Taking turns too fast

You might be surprised how often it happens, even on city streets and highway off-ramps. By their very nature, hard-side truck campers have a higher center of gravity than most vehicles. Add a suspension lift to the truck, and that center of gravity rises even higher, increasing the risk of instability. Whether your truck is lifted or stock, sharp turns should always be taken more slowly when carrying a hard-side camper. Entering a corner too fast can cause excessive body roll and, in extreme cases, a rollover like the unfortunate incident pictured here.

Upgrades such as a Hellwig Big Wig heavy-duty rear sway bar can help improve stability and reduce body roll, but they aren’t a cure-all. No suspension modification can overcome the laws of physics. The safest approach is simple: slow down before entering turns and give your camper-equipped truck the respect it deserves. Ignore this advice, and you could find yourself having a very bad day.

8. Driving with little cabover clearance

Another common mistake made by truck camper owners is improper cabover clearance. In this case, the problem is either too little space between the truck cab and the camper’s cabover section—or, less commonly, too much. Of the two, insufficient clearance is by far the most common issue, particularly among Ford owners. That’s because Ford truck cabs often sit 2 to 3 inches higher than comparable GMC and Ram models. When clearance is too tight, normal chassis flex and suspension movement can cause the camper and truck to make contact, potentially damaging the truck’s roof, the camper’s underside, or roof-mounted accessories such as clearance lights and shark-fin antennas.

The opposite problem—excessive clearance—is less likely to cause damage but can create additional wind resistance and negatively affect aerodynamics.

So how much clearance is enough? In our experience, 2 to 3 inches is a good minimum target for most truck-and-camper combinations. However, there is no one-size-fits-all answer. Factors such as suspension design, truck and camper weight, road conditions, and the type of terrain you travel on all play a role. If you frequently drive on rough forest roads, off-road trails, or uneven terrain, 4 to 5 inches of clearance may provide a better margin of safety.

The bottom line is simple: make sure you have enough cabover clearance to accommodate suspension travel and chassis flex, but not so much that you’re unnecessarily increasing wind drag. Finding that sweet spot can help prevent costly damage and improve overall driving performance.

9. Failure to observe low overhangs and bridges

This is one of the most costly and potentially devastating mistakes a truck camper owner can make. Tunnels, bridges, low-hanging tree branches, parking garage entrances, fuel station canopies, and roof overhangs can all pose serious hazards to an elevated truck camper rig.

Before hitting the road, know your exact vehicle height. If you’re unsure, measure it yourself with a tape measure. Be sure to include rooftop accessories such as air conditioners, vent covers, solar panels, antennas, and satellite dishes. The highest point on your camper—not the manufacturer’s published height—is the number that matters.

When approaching low-clearance obstacles, always leave yourself a safety margin. Don’t assume posted clearances are perfectly accurate, and never try to squeeze through an opening with only inches to spare. A moment of misjudgment can result in thousands of dollars in damage to your camper.

10. Lax propane safety

Propane is a safe and reliable fuel when handled correctly, but it demands constant caution and respect. To help with early leak detection, propane suppliers add a harmless chemical called mercaptan, which gives propane its distinct “rotten egg” odor. A propane leak should never be ignored. If you ever detect that smell, do not ignite any appliances, strike a match, or use any open flame. Even a small spark in the presence of a leak can lead to a catastrophic explosion.

If you suspect a propane leak anywhere in your RV system, immediately shut off the propane tank valve, evacuate the vehicle, and contact a qualified technician to perform a proper leak inspection. Under no circumstances should you attempt to troubleshoot or relight appliances before the system has been checked and deemed safe.

A critical part of propane safety—both in RVs and at home—is having properly functioning gas and carbon monoxide detectors. These alarms provide an essential early warning system that can prevent serious injury or worse.

It’s also important to be aware that the U.S. Department of Transportation requires propane cylinders used in RVs to be recertified every 12 years. Unfortunately, many RV owners are unaware of this rule until they try to refill an expired tank and are turned away at the propane station. Staying ahead of this requirement helps ensure you’re never caught off guard and always ready for safe, worry-free travel.