A prerunner is a street-legal truck built to drive fast over rough desert terrain. The name comes from desert racing in Baja California: before races like the Baja 1000, teams "pre-run" the course in trucks like these to learn the terrain, mark hazards and plan their pit stops. Those trucks had to be fast, tough and comfortable for hundreds of miles of dirt, and the style caught on far beyond race teams.
Today a prerunner, or baja truck, means a truck built around suspension travel and high-speed stability, not rock crawling.
What makes a truck a prerunner
Most prerunner builds share the same core parts:
- Front suspension with more travel. A long travel kit or mid travel kit with coilovers, often backed up by bypass shocks.
- Rear suspension to match. Long travel leaf springs and shackles, and on serious builds a bed cage to mount rear bypass shocks.
- Fiberglass. Wider fenders and bedsides to clear the wider track and bigger tires. See our fiberglass.
- A prerunner bumper. A tube-style front bumper that's lighter than stock and gives better approach angle.
- Tires and wheels. Usually 35- to 37-inch all-terrain tires on off-road wheels.
- Lighting for driving at night in the desert.
Popular prerunner trucks
Almost any half-ton truck or midsize pickup can become a prerunner. The most common platforms are:
- Ford F-150 and Raptor. The Raptor came from the factory with prerunner DNA. See Ford parts.
- Ram 1500 and TRX. Dirt King says its Ram 1500 long travel kit was first developed for Ram's Rebel TRX concept truck. See Ram 1500 parts.
- Chevy Silverado and GMC Sierra. A long-time desert favorite with deep long travel support. See Chevy and GMC parts.
- Toyota Tacoma, Tundra and 4Runner. Hugely popular, with long and mid travel kits for nearly every generation. See Toyota parts.
- Nissan Titan and Frontier. Less common, but well supported. See Nissan parts.
Where to start
Start with the front suspension, because it decides almost everything else: tire size, whether you need fiberglass, and what shocks and axles you'll run. Read our guide to long travel vs. mid travel to choose. Then match the rear suspension so the truck stays balanced, and add bumpers, fiberglass and lighting around it.
Prerunner vs. overland
Overland trucks are built for long, self-supported trips: racks, storage, camping gear and onboard air. They carry a lot of weight and usually travel slowly. A prerunner stays light and is built for speed on rough ground. Many trucks borrow from both, such as a mid travel kit with overland gear, but it helps to decide which matters more before you buy parts.
Planning a prerunner build? Email sales@bajaracingparts.com with your truck's year, model and drivetrain, and we'll help you put the parts list together.