| is an OE transmission manufacturer that supplies | | | | TKO has never been original equipment in any |
| manual transmissions for General Motors, Ford, | | | | production car, although its great-grandpa, the |
| Chrysler, Aston Martin, and many medium and | | | | Tremec TR-3550 was in a limited-production Ford |
| heavy duty truck applications. Their TKO | | | | Mustang Cobra in the mid 1990s. The TKO is |
| transmission is a high strength overdrive manual | | | | purely an aftermarket transmission designed for |
| 5-speed that was originally designed to be | | | | high-performance cars. |
| retrofitted into Mustang Fox body cars to replace | | | | There are three basic models available: the |
| the weaker T5, but will also bolt up to the | | | | TKO-500 and two variations of the TKO-600. The |
| standard Ford four speed passenger car | | | | wide-ratio TKO-500 is rated for a continuous 500 |
| bellhousing. When Tremec realized that enthusiasts | | | | lb.-ft. of torque, and offers a deep 3.27:1 first gear |
| were adapting it for GM applications, they decided | | | | ratio and a 32% overdrive ratio in fifth gear. The |
| to capitalize on a huge opportunity and produce a | | | | close-ratio TKO-600 is rated for a continuous 600 |
| GM version of the TKO as well. | | | | lb.-ft. of torque, and has a 2.87:1 first gear and |
| The GM version will bolt directly up to almost any | | | | either an 18% overdrive or a 36% overdrive |
| standard Chevrolet/Buick/Olds/Pontiac passenger | | | | ratio in fifth gear. The rated torque capacities are |
| car four-speed bellhousing. Though only Ford and | | | | said to be quite conservative, as there are a |
| GM versions of the TKO are available, Mopar | | | | significant number of cars in the field with engines |
| enthusiasts can get all the custom parts they | | | | that exceed the torque rating by a large margin, |
| need to adapt a Ford version TKO to virtually any | | | | and failures are rare. |
| Mopar V8 engine from Keisler Engineering. The | | | | |