Tremec

TREMEC: The Gold Standard in Performance Manual Transmissions

TREMEC has earned its reputation as one of the most respected names in drivetrain engineering. Manual Transmission Assembly is at the heart of everything TREMEC does — and has been since the company was founded in 1964. Originally rooted in government-regulated industrial manufacturing, TREMEC evolved into a global specialist in torque transfer solutions, ultimately becoming the go-to supplier for some of the most iconic performance vehicles ever built in Detroit.

TREMEC's breakthrough moment in the performance world came when it acquired BorgWarner's entire manual transmission division in the late 1990s, bringing the legendary T-56 6-speed under its umbrella. That acquisition gave TREMEC the engineering blueprints, tooling, and talent to become the benchmark for high-output manual gearboxes. The brand's Transmissions lineup — spanning the T-5, TKO, TKX, Magnum, TR-6060, and TR-9080 — covers everything from classic muscle car restorations to cutting-edge OEM supercar applications.

What sets TREMEC apart is not just the breadth of its catalog, but the engineering depth behind each product. TREMEC's 5- and 6-speed rear-wheel-drive manual transmissions use aluminum die-cast housings for reduced weight without sacrificing structural rigidity. Each gearbox is designed to endure sustained high-torque loads, deliver consistent high-RPM shifts, and minimize noise, vibration, and harshness — qualities that matter equally on the street and at the track.

TREMEC's influence spans OEM production vehicles and the performance aftermarket. The TR-6060 became the factory transmission for high-output versions of the Ford Mustang, Chevrolet Camaro, and Dodge Viper, while the Magnum line brought that same OEM-grade technology to vintage muscle car swap applications. The TKX 5-speed, one of TREMEC's more recent developments, was specifically engineered for the aftermarket, designed to fit a wider variety of classic transmission tunnels with minimal modification.

Beyond complete gearboxes, TREMEC supports builders and restorers with essential drivetrain hardware. Clutch Bell Housings are a critical part of any manual transmission swap, and TREMEC-compatible housings ensure proper alignment and fitment between the engine and gearbox. Keeping a transmission sealed and leak-free is equally important, which is why Gaskets & Seals round out the TREMEC parts ecosystem — whether for new installations or rebuilds.

Whether you're dropping a Magnum 6-speed into a 1969 Chevelle, keeping a factory TR-6060 in peak condition, or building a purpose-built track car from the ground up, TREMEC provides the components to do it right.