Enter your truck and trailer details to find out if you're set up to tow safely — and what you need to do if you're not.
Select your truck's exact configuration. Tow capacity varies significantly by engine, drivetrain, and cab — make sure your selections match your door jamb sticker.
Enter your trailer's weight details as accurately as possible. When in doubt, round up — it's safer to overestimate than underestimate.
Tongue and pin limits shown here are estimates (10% of tow rating), not manufacturer figures. Check the sticker on your door jamb and your hitch rating before you hook up.
| Check | Your Setup | Limit | Margin |
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Your truck's maximum tow rating is the absolute upper limit — not a target. It's the weight the manufacturer says the truck can tow under ideal conditions: flat roads, experienced driver, properly maintained vehicle, correct configuration. It does not account for mountain grades, crosswinds, worn brake pads, summer heat, or the fact that your 2024 F-150 SuperCrew 4WD has a different (lower) rating than the base Regular Cab 2WD that achieved the headline number.
A good rule of thumb for relaxed, comfortable towing: stay at or below 80% of your max tow rating.
Key takeaway: The tow rating is the maker's maximum; exceeding your GVWR or GCWR can also be an offence. Aim for 80% or below.
Payload capacity is the maximum weight your truck can carry — in the bed, in the cab, and on the hitch. The tongue weight of your trailer (typically 10–15% of loaded trailer weight) counts against your payload, not just your tow rating.
Example: Your truck has 1,800 lbs of payload. You have two passengers (360 lbs), 200 lbs of gear in the cab, and a trailer with a 1,400 lb tongue weight. That's 1,960 lbs of payload used — 160 lbs over limit — even if the trailer is well within your tow rating.
Where to find it: Your specific payload limit is on the yellow sticker inside the driver's door jamb. It says something like "Combined Weight of Occupants and Cargo Should Never Exceed XXX lbs." That number is your payload. Do not use online specs — use the sticker on your actual truck.
What happens when you exceed payload: Rear suspension sag, understeer, reduced braking effectiveness, potential tire overload, and voided manufacturer warranty for any damage that results.
A weight distribution hitch (WDH) uses adjustable spring bars mounted to the hitch head to redistribute the downward force of the trailer's tongue weight across all four wheels of the tow vehicle (and sometimes the trailer's front axle). Without one, tongue weight concentrates at the rear of the truck, causing the back to sag, the front to rise, and your steering and braking to become compromised.
When is a WDH needed?
What to look for: Popular brands include Equalizer, Blue Ox, Reese Towpower, and Andersen. Match the WDH's rated capacity to your tongue weight. Most include integrated sway control.
Trailer sway — the side-to-side oscillation that can escalate into a jackknife — is one of the most dangerous towing situations on the highway.
Common causes of trailer sway:
Load your trailer properly: 60% of cargo weight should be loaded in the front half of the trailer (ahead of the axle). Heavy items low and forward. Never pack heavy gear at the rear — it creates a pendulum effect.
If sway starts while driving: Do NOT brake suddenly. Take your foot off the accelerator and let the vehicle slow naturally. Hold the steering wheel firmly and straight. Only apply gentle trailer brakes manually (via the brake controller's manual override) if the sway is severe.
Sway control devices: A friction sway control bar or a weight distribution hitch with integrated sway control significantly reduces the risk. Electronic trailer sway control (built into many modern trucks) provides a last-resort safety net but should not be relied upon as a substitute for proper loading and setup.
Every province requires trailer brakes above a gross-weight threshold, and it varies: 910 kg in Alberta, 1,300 kg in Quebec, 1,360 kg in Ontario, 1,400 kg in BC. Check your own province's regulation. Electric brakes need a controller in the cab.
Province-by-province overview (general guidance — always verify current regulations):
Your licence matters too. In Ontario a G licence lets you tow a trailer up to 4,600 kg (combination up to 11,000 kg); a heavier trailer needs a Class A or restricted Class A licence. In BC a Class 5 licence covers trailers up to 4,600 kg; heavier RV trailers need the House Trailer endorsement (code 07). Check your own province before buying a bigger trailer.
Types of brake controllers:
Even where not legally required, a brake controller is strongly recommended for any loaded trailer over 2,000 lbs. Trailer brakes dramatically reduce stopping distance and reduce wear on your truck's brakes.
Mountain towing puts unique demands on your vehicle's drivetrain, brakes, and cooling system.
Going downhill: Resist the urge to ride your service brakes. Instead, use engine braking by selecting a lower gear before the descent begins. For automatic transmissions, use the manual mode or select a lower gear using the gear selector.
Watch your temperature gauges: Transmission fluid temperature is the critical one for towing in mountains. If your transmission temp rises into the warning zone, pull off safely and let things cool. Overheating transmission fluid breaks down rapidly and leads to expensive failure.
Going uphill: Stay to the right and don't be afraid to use a lower gear. Let traffic pass. A sustained climb at full throttle generates significant heat — monitor all temps.
Passing lanes: Use them when available on upgrades. Many mountain roads in BC, Alberta, and Quebec have designated slow-vehicle pullouts — use them when you have a line behind you.
Tire pressure is critical when towing, and both over- and under-inflation cause problems — though under-inflation is the bigger danger. Running soft tires while towing causes heat buildup, increased rolling resistance, and dramatically elevated blowout risk.
Do not use the sidewall max pressure as your target. The sidewall shows the maximum pressure the tire can safely hold — it's a structural rating, not a recommended inflation pressure. Your target inflation pressure is found in your vehicle's door jamb sticker or owner's manual.
When towing heavy loads: Many manufacturers recommend inflating to the maximum recommended pressure (from the door jamb) when towing near maximum payload. Check your owner's manual for towing-specific pressure recommendations.
Don't forget the trailer tires: Trailer tires (ST-rated) operate at higher pressures than passenger tires and are typically inflated to the maximum sidewall pressure. Check cold before each trip. Trailer tire blowouts can trigger sway.
Consider a trailer TPMS: A Tire Pressure Monitoring System for your trailer lets you see all four tire pressures in real-time from the cab. Highly recommended for any trailer over 20 feet.
Towing lengthens your stopping distance substantially.
Why stopping distance increases so dramatically:
Compensating techniques: