The TREMEC T-5 originally came as OE equipment in Fox body Mustangs and was a popular overdrive transmission for years. When TREMEC introduced it to the aftermarket, it became an easy choice for early Mustangs with moderate power levels. The T-5 only has one shifter position, a 10-spline input shaft, and a Ford bellhousing bolt pattern, because of this, the T-5 wasn’t a viable option for other makes or models. While TREMEC’s other 5-speed, the TKX, is highly versatile and a great transmission for a wide range of applications, it’s also more expensive than the T-5. Silver Sport Transmissions (SST), known for their PerfectFit TREMEC transmission kits, tasked their in-house engineering team to make their first T-5 kit for 1968-1979 Chevrolet Corvettes to give moderately powered Corvettes a second, more affordable option for an overdrive 5-speed transmission. Continue Reading