i have a friend that runs road courses with the keisler----his funny is that if you are at a race and you see 2 or more drivers standing around talking that one of them is asking if someone has a T56 core to sell......not funny if you have a viper or gm---but funny enough for him....
Would somebody in the know here please explain the differences in the TKO transmissions???
TY
The TKO 500 or 600 is a redesign of Tremecs TR-3550, the 3550 was a long running/widely used production piece used by Ford/GM and assorted other production mfg, the TKO is Tremecs "aftermarket" offering, having only been used once in factory production in a limited number of Cobra Mustangs
The TKO has a 10 spline input shaft, smaller input bearing retainer, the TKO 600 has a larger 26 input spline, larger input bearing retainer, both have a 31 spline output shaft
the 500 TKO has a 3.27:1 1st gear, the 600 has a 2.87:1 1st gear, the TKO's utilize high grade alloy gears and steel forged shift forks, where as the T5 and TR3550 used cast gears and aluminum shift forks, the biggest change to the TKO design is the upgrade from a 3pc to 1pc countershaft along with internal upgrades mentioned above
Downside is the bronze syncros, that limits the shift point to 6000 RPM, carbon fiber upgrades are available to increase that into the 7000 rpm range
If your considering a TKO opt for the 600, stronger unit, and more upgrade/service offerings from assorted aftermarket suppliers/rebuilders
