The TREMEC TUET18131 Magnum XL T56 6-Speed Transmission is the ultimate upgrade for high-performance GM rear-wheel-drive vehicles. Engineered for demanding builds, it combines race-proven strength with refined street manners, confidently managing up to 700 lb-ft of torque.
Built upon the robust TR-6060 platform, the Magnum XL features a dedicated extended-length tailhousing. This design conveniently positions the shifter in the factory location for many late-model GM applications, simplifying installation by eliminating the need for complex shifter relocation.
The direct-mount, isolated shifter system provides crisp, precise gear engagement while actively minimizing noise and vibration for a comfortable driving experience. Internally, high-strength gears, upgraded synchronizers, and a reinforced countershaft ensure durability for naturally aspirated, boosted, and stroker engine combinations all the way up to 7,800 RPM.
With its lightweight aluminum case and a double overdrive gear set, the Magnum XL offers both exhilarating performance and improved highway cruising economy. Ideal for muscle cars, pro-touring machines, and custom LS swaps, it delivers the renowned strength, precision, and reliability TREMEC is known for.
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