Special Notes Style Torque Rating Input Spline Gear Ratios 1st 2nd 3rd 4th 5th R *Mopar 5-Speed Swap Capable Ford Mustang 600 lb-ft 10x1 1/16" 3.27 1.98 1.34 1.00 0.72 3.00 *Special Bellhousing Required. TREMEC is pleased to announce the release of the new TKX, a 5-speed RWD manual transmission developed solely for the aftermarket. For the development of the new transmission, TREMEC engineers took a forward-looking approach to finding the best and most efficient solution. This included universal packaging, excellent shifting performance, and extreme durability. The end result is superior shift-ability with smooth shifts at high RPMs through the use of multi-cone synchronizers and hybrid synchronizer rings. At the same time, noise, vibration and harshness (NVH) performance is optimized with a gear layout to best control stress levels, while providing structural stiffness with a ribbed, 3-piece aluminum housing. Durability is further optimized with oversized gear widths, gaskets at all flanges and caged needle bearings in all gear positions. Whether restoring or upgrading a classic muscle car or a 1930s-era roadster coupe, the new TREMEC TKX 5-speed RWD manual transmission delivers a top-quality drivetrain solution. Notes: Compatible for MoPar Big Block & Small Block / Gen 3 Hemi 5-Speed Conversion. Contact us for additional parts required.