Since 2008

At Next Level Engine & Transmission, we bring a wealth of industry experience dating back to 2008. Our journey began as "Pinedale Auto Repair & Diesel Performance" in Pinedale, Wyoming, where we honed our skills and built a reputation for excellence in engine building. Over the years, we have expanded our horizons, leaving a mark of quality at "Industrial Injection" in Salt Lake City, Utah, and "D&J Precision & Machine" in Cambridge, Ohio, before finally making Phoenix, Arizona, our home in 2021.

Next level Engine & Transmission

At Next Level Engine & Transmission, our success comes from the hands, minds, and dedication of our expert builders and technicians. Every member of our team shares the same passion for horsepower, precision, and quality craftsmanship — and it shows in every build that rolls out of our shop.

Our builders are seasoned professionals with years of experience in engine and transmission rebuilding. They treat every project like their own, paying attention to every detail — from torque specs to tuning curves — to ensure reliability, strength, and performance.

Next Level isn’t just a shop — it’s a family. From the front office to the shop floor, every person here plays a key role in delivering the quality and service our customers expect.

Our commitment to our customers shines through in our dedication to designing world-class engine and transmission solutions for every budget. Whether you're looking for diesel or gas performance transmissions, we have the expertise to cater to your specific needs.

One of our proudest achievements is the development of the industry-leading 68rfe transmission. Through relentless innovation and process refinement, we ensure that our customers receive the best product per cost in the industry.

At Next Level Engine & Transmission, we don't compromise on quality. Our in-house machine shop enables us to uphold aircraft-quality standards on all components manufactured by us. This commitment to precision guarantees that our customers receive products of unparalleled quality and durability.

Meet Our Team!

  • Bob Millican

    - Master Builder & Founder

    With decades of experience in engine and transmission work, Bob Millican built Next Level from the ground up with one mission in mind: to deliver unmatched quality and reliability on every build.

    Bob’s expertise covers everything from high-performance engine builds to complete transmission overhauls. Known for his attention to detail and commitment to excellence, Bob sets the standard that drives the entire shop forward.

    “If it’s not done right, it’s not leaving the shop.” – Bob

  • Kaylee Millican

    - Teardown & Inspection Specialist, Custom Painter, Valve Body & Pump Builder, Founder

    With extensive experience in fabrication and transmission work, Kaylee takes great pride in her craftsmanship. Her expertise spans high-performance Import engine builds, complete transmission overhauls, and precision custom work. Known for her meticulous attention to detail and unwavering commitment to excellence, Kaylee sets the standard of quality here at Next Level.

  • Maverick

    - Shop Bulldog & Parts Manager

    Meet Maverick, our beloved bulldog and official Head of Parts and Packages.

    Maverick might not turn a wrench, but he plays a big role in keeping things running right. He oversees all incoming packages, keeps an eye on deliveries, and makes sure the correct parts are in the shop when we need them. Whether he’s inspecting shipments or greeting customers, Maverick’s loyalty and presence bring plenty of smiles to the Next Level family.

Thank you for considering Next Level Engine & Transmission for your performance needs. Join us on this exhilarating journey to reach new heights of performance and take your ride to the Next Level!

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