Building a Rally-Ready Bronco
There’s a common assumption when it comes to building an off-road vehicle.
That more mods equal more capability. Make it bigger, more aggressive, more everything. It’s easy to build something that looks capable but it’s a lot harder to build something that actually holds up. With long days and repeated hits, rally driving will expose that quickly.
But it hasn’t just been rally. It’s been camping trips, road miles, events, and everyday use that have shaped this build too, and that mix matters.
This Bronco doesn’t just have one job and it wasn't built all at once, it’s been shaped over time. Through experience, mistakes, and figuring things out the hard way. Whether it was a limitation we felt, a problem we ran into, or a weak point that showed itself, every change came from something concrete.
We like to call this build style "OEM+"
OEM+ means starting with a solid foundation and being intentional with what we change. We’re not replacing parts just to replace them, we’re not chasing trends, and we’re definitely not building just to have a long mod list. If it’s on Betty the Bronco, it has a purpose.
When Bigger Isn’t Better
We’ve tested the “bigger is better” mindset at one point running a set of 37 inch tires. It sounds great, right? More clearance, more capability, and a more aggressive look. But in reality, it created more problems than it solved.
MPGs dropped, the tires didn’t properly clear the fenders, and long term it would have added stress to everything. Steering, axles, and more are now working harder than they were designed to.
All for what? A slightly different look and a small gain in clearance. That was one of those moments where we had to step back and ask if the trade-off actually made sense. For us, it didn’t.
Every decision forces a question. Do we actually need this? Does it fix a real problem? Does it improve reliability? Sometimes the answer is yes.
Sometimes the best decision is leaving it alone.
What Actually Worked
We ended up going back to a 35 inch tire. The same size the Badlands/Sasquatch came with from the factory. The difference was immediate, we got better gas mileage and handling improved greatly on the highway. It felt like a daily driver again.
Off-road it still performs exactly how we need it to, especially in sand, where consistency and control matter more than just size.
It was a good reminder for us that the goal isn’t to build the biggest setup, it’s to build the one that works best across everything we actually do.
Weight Matters
One of our build rules that surprises a lot of people is we track weight. Everything we add to the Bronco is considered. Armor, tools, recovery equipment, water, camping gear and passenger weight all add up fast.
When we’ve mentioned that to other competitors, it’s usually met with some pushback. But the reality is there’s a big difference between a weekend trip and a rally. On a weekend, you can be over payload, drive carefully, and then spend most of your time parked at camp.
But competing in the Rebelle Rally doesn’t work like that. You’re moving all day while keeping a steady pace. The vehicle is subjected to repeated impacts and long hours for 8 consecutive days. Running over payload in those conditions isn’t just a number on paper. It shows up.
Shocks wear out faster and components take more stress. Heat builds and things will start to fail. Not all at once but over time, and that’s exactly what we’re trying to avoid.
Always Evolving
There isn’t a final version of this build. Every trip, training, and rally gives us more information. What works, what doesn’t, and what needs to change.
We’re not chasing perfect. We’re building something we can trust.
Now that we’ve defined our approach, we can get into the details. In our next blog see what we’ve actually changed and what we’ve left alone. Every detail matters out there, especially for our third teammate!