Allison Transmission will offed the TC10 TS, a 10-speed, fully-automatic, twin-countershaft, range-type truck transmission later this year. The unit will be ready to use in day cabs, truckload, regional haul, LTL, liquid transport, equipment transport and construction.
The transmission will have a torque converter with lockup clutch in place of a standard, dry clutch at front. It will have helical gears integrated with a twin-countershaft layout for five forward speeds and the reverse gears in the main box, as well as a two-speed planetary range box at the rear. Also, the torque converter will be used only for launch, locking up before the shift to second gear under nearly all circumstances, to save fuel.
Production will start in October. Several prototype transmissions are being tested in fleet operations. Final warranty terms are still to be determined, but a 5-year, 750,000- mile warranty is the target.