For most fleet managers, the border between the United States and Canada probably isn't something they think about when they spec an F-350, order a Silverado HD, replace a service truck, or start wondering why a chassis that was supposed to arrive at the upfitter three weeks ago still isn't there.

But we need to start thinking about it, because after two decades covering trucks and fleets, one thing I have learned is that very little in this industry happens in isolation. A production decision at an OEM becomes an allocation problem for a fleet, which becomes a scheduling problem for an upfitter, which becomes an aging-asset problem for maintenance, and eventually a very big manufacturing story becomes a very ordinary fleet problem: the truck isn't here and the job still needs to get done.

That is what concerns me about the escalating trade fight between the United States and Canada. There is an assumption underlying much of the conversation that Canadian automotive manufacturing is capacity America has somehow lost, and that if tariffs make producing vehicles in Canada expensive enough, that production can simply move south and everybody in the United States ultimately wins.

And I think that deserves a much harder look.

Let me start this out by making one thing very clear. I am in no way against American manufacturing. More U.S. manufacturing jobs, investment, and industrial capacity are worthwhile goals. But I also believe North America has spent generations proving that we can be stronger when we build things together, using the workers, suppliers, infrastructure, and capacity available on both sides of the border instead of assuming every Canadian-built truck represents something that should have been built here.

The question isn't simply whether America can bring more truck production home. It is what we risk breaking while we try and if it’s worth it.

Ford and GM Put This Squarely in the Fleet Lane

On August 24, President Donald Trump announced that beginning January 1, 2027, tariffs on Canadian cars, trucks "both large and small," automotive parts, and steel would increase to 50%. According to CBS News' report on the announcement, Trump was equally clear about the alternative he wants manufacturers to choose, writing, "Build in the U.S. and there are ZERO TARIFFS."

The announcement followed the breakdown of U.S.-Canada trade negotiations from days earlier. There are competing accounts of exactly what happened in those final hours, and unless the negotiating documents become public, nobody outside those rooms should pretend to know every detail. But what we do know is that trucks were part of the disagreement.

As CityNews reported from Canadian Prime Minister Mark Carney's press conference, Carney specifically identified Ford's planned F-350, F-450, and F-550 production in Oakville, Ontario, and GM's Chevrolet Silverado production as examples of vehicles that would have remained outside proposed tariff relief. Carney said the terms would have made Canadian production "more uneconomic over time."

Those aren't fringe vehicles for the Work Truck audience. They are some of the trucks our readers use every day. Ford's Oakville plans are particularly important because the company has already told us why that Canadian capacity exists.

According to Ford Motor Company's July 2024 announcement, Oakville was expected to add capacity for as many as 100,000 F-Series Super Duty trucks annually, creating a third North American Super Duty production location alongside Kentucky Truck Plant and Ohio Assembly Plant.

Ford wasn't adding production in Canada because Kentucky and Ohio were sitting half-empty. The company said both U.S. plants were already operating at full capacity while demand from Ford Pro customers exceeded what it could build. And that changes the conversation considerably.

If tariffs ultimately make those Oakville-produced Super Duty trucks uneconomic for the U.S. market, there is not automatically an empty assembly line in Kentucky waiting to produce another 100,000 trucks. Ford selected Oakville because it needed more North American capacity.

GM's Oshawa Assembly Plant gives us the other half of the picture. According to GM Canada's June 2026 production update, Oshawa has built more than 500,000 Chevrolet Silverado pickups since vehicle production restarted there in 2021, with the 500,000th truck being a Silverado HD. GM is also investing another C$343 million to prepare the plant for its next generation of full-size pickups.

Oakville represents capacity North America was planning to add because customers need more trucks and Oshawa represents capacity North America is already using. And that is what makes this a fleet issue before we ever get to the politics.

Maybe Integration Isn't the Problem

There is another part of this discussion that I think gets lost when we reduce everything to where the final assembly plant happens to sit. Ford's Oakville plan also supports American manufacturing. According to Ford's production announcement, adding Super Duty production in Oakville was tied to additional investment and work at facilities in Ohio and Michigan. Ford said 10 U.S. plants in five states employing about 20,000 American workers supported Super Duty production.

So what, then exactly is a Canadian truck?

Final assembly may happen in Canada, but American workers build some of its components. Canadian workers build others. Those pieces move through a supplier network that has developed around the idea that North America is a manufacturing region, not three completely independent automotive economies.

That isn't an accident, and it isn't a loophole. We built it this way intentionally. The roots reach back to the 1965 Canada-U.S. Auto Pact and continued through free trade, NAFTA, and eventually USMCA, which still uses North American regional-content requirements for vehicles and major components.

For decades, policy encouraged manufacturers to use the strengths, scale, suppliers, and production capacity available across North America rather than duplicate every part of the manufacturing process inside each country's borders.

And I truly believe there is value in that. There is a tendency in the current conversation to treat integration itself as evidence of weakness, as though the fact that a transmission may be built in Ohio, installed in a truck assembled in Ontario, and ultimately sold to an American utility somehow means America lost.

I am frankly not convinced it means that at all. Sometimes it means an American factory was already full, a Canadian factory had capacity, American suppliers gained additional work, and the customer got the truck.

To me, that sounds far less like any kind of manufacturing failure and more like a supply chain doing exactly what it was built to do.

The changes that followed USMCA offer a useful reminder of how these manufacturing shifts tend to work in practice. Tougher regional-content rules helped pull some component and material production north, but they did not simply empty Mexican vehicle plants and refill American ones.

Mexico continued producing millions of vehicles annually, while some of the clearest U.S. gains came in engines, transmissions, axles, steel, and other parts. When automakers have moved or added vehicle production in the United States, they have generally done it where compatible capacity already existed or after significant investment and retooling.

That matters when we look at Oakville. Trade policy can absolutely influence where the next factory investment goes and where components are sourced, but it does not automatically create production capacity where none exists. Ford chose Oakville because its existing U.S. Super Duty plants were already full. If the goal is to move those trucks south, the lesson from the USMCA-era shifts is that the real question is not simply whether production can move, but whether there is somewhere ready to take it, how much time and investment creating that capacity requires, and what happens to fleets while that transition is underway.

Fleets Will Pay Attention to the Transition, Not the Slogan

None of this means that more production cannot or should not move to the United States. The auto industry has built plants, expanded factories, relocated programs, and reworked supplier networks countless times. But manufacturing capacity does not relocate on the same timeline as a tariff announcement. And demand today does not mean sustained demand for that plant 10 years from now.

If the United States wants the additional 100,000 units of Super Duty capacity Ford planned for Oakville to exist domestically instead, a plant has to build them. Tooling has to be installed, workers hired, suppliers aligned, production validated, logistics changed, and capacity created. If Silverado production currently handled in Oshawa moves south, GM faces its own version of those decisions which takes time, and fleets have to live and work in that transition.

We've seen what happens when chassis availability gets disrupted. The truck doesn't arrive, so the upfit doesn't happen. The unit scheduled for replacement stays in service longer. Maintenance keeps putting money into an asset everyone expected would already be gone, while the operating side of the business still needs something to show up at the jobsite tomorrow morning.

For a work truck, the problem becomes even more complicated because the chassis is often only the beginning. Service bodies, cranes, aerial devices, refrigeration systems, dump bodies, liftgates, hydraulics, and other vocational equipment all depend on that chassis arriving when everyone planned for it to arrive.

I am not predicting another pandemic-level shortage is coming, but after everything this industry has experienced over the past several years, assuming we can significantly rearrange North American truck production without some disruption would be equally hard to defend.

Both Countries Are Rethinking the Old Model

This story is also bigger than the United States trying to bring manufacturing south. Canada is changing direction, too. In his August 22 remarks explaining Canada's decision to suspend negotiations, Carney said, “Early last year, in this room, I observed that the decades-long process of steadily increasing integration between our economies was over.”

He later added, “Building at home and diversifying trade abroad is not our Plan B. It has been our Plan A from the start.”

Those are significant statements because, for generations, increasing integration wasn't simply something that happened to North American automotive manufacturing. It was one of the goals. Now the United States is openly trying to encourage more manufacturing inside its own borders while Canada's prime minister is openly talking about becoming less dependent on the United States.

For decades, both countries built automotive policy around making the border matter less but now, both look to be pursuing strategies that make it matter more. Even the timing of the newly opened Gordie Howe International Bridge between Windsor and Detroit makes the shift hard to miss. According to the Canada Border Services Agency, approximately 30% of Canada-U.S. trade carried by truck moves through the Windsor-Detroit corridor, representing more than $274 million in daily trade.

North America just opened a massive piece of infrastructure designed to make one of its most important integrated manufacturing and freight corridors work better while simultaneously reconsidering the economic model that made the corridor so important in the first place.

Stronger Together Should Still Be Part of the Conversation

I understand the appeal of "Build in the U.S." I want a strong American manufacturing sector. I want American workers building trucks, components, equipment, and technology. I want domestic industrial capacity that is resilient enough to handle the next disruption rather than discovering afterward that we gave away something we desperately needed.

But I don't think those goals require us to conclude that every truck assembled north of the border represents a loss for the United States. Ford's own Super Duty plans make that argument difficult to sustain. Its American plants were already full. Oakville was intended to give Ford more capacity, satisfy more customers, and create additional work for American component plants at the same time. That is North American manufacturing working together.

The question for work truck fleets isn't whether America should make more things here. It is whether dismantling more than 60 years of integrated automotive manufacturing makes American businesses stronger, particularly if doing so creates higher costs, fewer trucks, longer lead times, or a painful transition while new U.S. capacity catches up.

Maybe the better goal isn't to make every part of the truck here. Maybe it is to make sure North America remains the strongest, most resilient place in the world to build the trucks our businesses need. Because after more than 60 years of building one North American automotive industry, the border doesn't simply sit between the factories anymore. It runs through the truck.

What do you think? Let's chat.