In the world of monster trucks, the difference between a showstopper and a shop-bound breakdown often comes down to the transmission system. These machines face some of the harshest driving conditions imaginable—gravity-defying jumps, thunderous landings, and torque-heavy pulls—and they rely on rock-solid drivetrains to get the job done. That’s why the pros turn to SCS Gearbox.
For more than three decades, SCS has been the trusted source for high-performance transmissions and driveline components purpose-built for the extreme demands of monster truck competition. Let’s take a closer look at the upgrades top drivers depend on to survive—and thrive—in the spotlight.

Why Transmission Strength Is Non-Negotiable
A monster truck’s transmission isn’t just a mechanical component—it’s the core of its performance and reliability. These vehicles generate immense horsepower and torque, and they need drivetrain systems that won’t crack under pressure.
From gear changes in mid-air to controlling massive tires during tight maneuvers, transmissions in monster trucks must deliver:
- Consistent power delivery
- Durability under impact
- Adaptability for different event formats
- Easy maintenance and fast swaps
SCS Gearbox builds every unit with these demands in mind.
The SCS Two-Speed Transmission
For drivers who need to switch seamlessly between power and speed, the SCS Two-Speed Transmission is a favorite. Whether crawling through technical stunts or flooring it in a straight-line race, this system makes real-time shifting possible—without sacrificing performance.
What Makes It a Monster Truck Staple:
- Dual gear sets for varied conditions
- Heavy-duty construction to absorb shock from hard landings
- Optimized gearing for peak acceleration and control
This transmission gives drivers the flexibility they need to dominate multiple event styles without changing equipment.
SCS Reverser
Backing up in a monster truck may not sound glamorous, but in tight arenas or technical freestyle runs, reverse gear can make or break your performance. The SCS Reverser Gearbox ensures you’re not just charging forward—but able to reposition with power and precision.
Features Pros Love:
- Strong reverse torque capacity
- Seamless integration with SCS 2-speed and 4×4 systems
- Compact design to save space and weight
This component is essential for full mobility when every second counts in competition.
4×4 Transfer Case: Monster Power, Front to Back
Synchronized front and rear power is a must for control during jumps, landings, and turns. The SCS 4×4 Transfer Case is built to handle high-horsepower setups and abusive conditions that would break lesser systems.
Why It’s on Every Serious Builder’s Radar:
- Built from high-grade materials for superior strength
- Supports extreme torque distribution
- Custom input/output combinations to suit any build
If you’re running big horsepower, you need a transfer case that’s been proven on the pro circuit.
Quick Change Gears
Time between runs is limited. When conditions change or track demands shift, top teams rely on SCS Quick Change Gears to dial in their ideal gear ratio fast. No guesswork. No delays.
- Swap ratios in minutes without pulling the transmission
- Wide selection of gear sets for precision tuning
- Made specifically to match SCS housings and spline counts
For professional teams, versatility is everything—and fast changes give you a leg up before the green flag drops.
Ready to Gear Up?
Let SCS Gearbox be your go-to source for monster truck transmission upgrades. Reach out to our expert team at 419-483-7278 or email sales@scsgearbox.com to learn more about how our systems can take your build to the next level.
From gear changes to power distribution, SCS delivers the parts that keep champions in motion.