Jacks Transmissions – Reinventing Drivetrain Strength
When it comes to high horsepower builds, the drivetrain is often the first weak point. Jacks Transmissions, based in the USA, has built a global reputation by transforming standard gearboxes into race-ready, bulletproof systems. Known for their expertise with Mitsubishi Evo, DSM, Nissan GTR, Subaru, Honda, and Porsche, Jacks Transmissions engineers solutions that allow drivers to push their cars to the limit without worrying about transmission failure.
At ATOMIC-SHOP, we are proud to bring Jacks Transmissions’ lineup of gearboxes, rebuild kits, and drivetrain components to European enthusiasts. Whether you’re chasing 9-second drag times, carving apexes on track days, or simply want peace of mind on a 600+ hp street build, Jacks Transmissions delivers proven durability.
From Rebuilds to Race-Ready Gearboxes
What makes Jacks Transmissions unique is their dual focus: they not only sell reinforced parts, but also rebuild and upgrade factory gearboxes to exceed OEM limitations. Their workshop background gives them deep insight into real-world failures, which directly informs their engineering approach. Every upgrade is tested, refined, and proven under motorsport abuse.
Applications Across Platforms
Jacks Transmissions supports a wide range of platforms where transmission reliability is critical:
- Mitsubishi Evo & DSM – legendary 4G63 and 4B11 builds often rely on Jacks’ Stage kits
- Nissan GTR (R35) – high-power VR38 builds demand gearbox reinforcements
- Subaru WRX/STI – rally and street builds benefit from stronger synchros and gears
- Honda & Porsche – track-focused solutions where precision and durability meet
From AWD drag launches to endurance racing, Jacks has developed solutions for the most torque-intensive environments.
Stage Build Philosophy
Jacks Transmissions offers different Stage upgrade packages to suit every application:
- Stage 1–2: street-oriented rebuilds with improved synchros, bearings, and heat treatments
- Stage 3–4: drag and track builds with billet gears, stronger forks, and reinforced shafts
- Custom builds: tailored solutions for unique applications, from time attack to endurance racing
This staged approach allows enthusiasts to choose the right balance between budget, power goals, and usage scenario.
Rebuild Kits & Components
Beyond complete transmissions, Jacks offers rebuild kits that include upgraded synchros, bearings, seals, and gaskets—ideal for workshops and enthusiasts who want to refresh or strengthen their own gearbox. Additional components include:
- Gearsets – billet-cut for improved torque handling
- Shift forks & hubs – reinforced for precision and durability
- Input shafts & final drive upgrades – designed to handle extreme torque
- Differential upgrades – optimized for power delivery and traction
These parts are developed not as universal solutions but as platform-specific reinforcements, ensuring precise fitment and reliability.
Transmission Cooling Systems
High-performance transmissions generate extreme heat, especially under racing conditions. Jacks Transmissions addresses this with cooling system upgrades, including additional lines, pumps, and external coolers. By maintaining lower operating temperatures, these solutions extend component life and sustain performance during long stints on track.
Built for Drag, Track, and Street
Whether your passion is drag racing, circuit competition, or spirited street driving, Jacks Transmissions ensures your drivetrain can keep up. Their gearboxes have been proven in:
- Drag racing – withstanding clutch dumps and instant torque delivery
- Road racing – providing precise, fast shifts lap after lap
- Street performance – blending durability with daily drivability
Quality Control & Precision Engineering
Each Jacks gearbox and component undergoes strict inspection and testing. Microscopic crack detection, gear profile analysis, and tolerance verification ensure that every part meets motorsport-grade standards. This is not mass production—it’s precision engineering tailored for performance.
Global Reputation Among Enthusiasts
From American drag strips to European time attack circuits, Jacks Transmissions has become a trusted name in drivetrain reliability. Their builds are often highlighted in enthusiast forums, race team builds, and tuning shop recommendations, cementing their position as one of the world’s most respected transmission specialists.
Why Choose Jacks Transmissions from ATOMIC-SHOP?
By ordering Jacks Transmissions products through ATOMIC-SHOP, you gain:
- Access to official Jacks components and rebuild kits
- Expert guidance on selecting the right Stage package or part
- EU-wide delivery and verified authenticity
- Integration support for complex builds
Strength Where It Matters Most
Jacks Transmissions is more than a gearbox supplier—it’s a safeguard against drivetrain failure. By combining workshop experience with engineering innovation, Jacks delivers solutions that allow enthusiasts and professionals alike to push their vehicles to the limit with confidence.
At ATOMIC-SHOP, we are proud to support builds that demand true performance. When your power levels rise, your transmission must rise with it—and with Jacks Transmissions, it always does.