Overdrive Staff | November 01, 2011

Automatic transmission has ‘blended architecture’

Allison Transmission has introduced a 10-speed, fully-automatic, twin-countershaft, range-type transmission: the TC10 TS.

The unit will be marketed for use in daycabs, truckload, regional haul, less-than-truckload, liquid transport, equipment transport and construction,

Todd Dygert, NAFTA-MSS product specialist for the TC10, described the unit as having “blended architecture,” combining characteristics of the twin-countershaft mechanical truck transmission with those of the maker’s existing automatics.

The transmission will have a torque converter with lockup clutch in place of a standard, dry clutch at front. But 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 Oct. 1, 2012, and will expand in 2013. Prototypes 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.


Cat, Navistar team up to build cabover

A cabover-engine vocational truck will soon be produced and sold globally in the ongoing collaboration between Caterpillar Inc. and Navistar International Corp., the companies announced.

Cat and Navistar also have an agreement to produce Caterpillar heavy-duty vocational trucks for North America. Customer deliveries have started for the Cat CT660 vocational truck, which was unveiled in March.

Under terms of this new relationship, NC2, the company created and formerly co-owned by both manufacturers, will become a wholly-owned subsidiary of Navistar. Also, through a new brand licensing agreement, both International and Caterpillar branded trucks will continue to be distributed through both International and Caterpillar dealers outside of the United States. strives to maintain an open forum for reader opinions. Click here to read our comment policy.