The crew over at Road and Track recently uncovered an employee newsletter that was sent to a supplier of Tremec, who has previously built manual gearboxes for both the Mustang and Corvette.
In this newsletter, there are two new transmissions depicted: the Tremec TR-7007 DCT and the TR-9007 DCT. It is revealed that Tremec contacted supplier Fassler in early 2016 about a new gearbox project dubbed “GM-DCT” that would be able to support up to 664 lb-ft (900 Nm) of torque. This transmission was developed in Belgium and is to be manufactured in Mexico and assembled in the United States. According to Fassler, it will supply Tremec with gear honing machines to perfect the gears, shafts, and wheels to be used in the gearbox.
In late summer 2017, Tremec again placed an order for more honing machines, this time for a project dubbed “Ford-DCT”. The newsletter goes on to state that two honing machines had to be modified for the Ford transmission because it is a variant of the GM-DCT and shares parts.
In all likelihood, this information indicates that the Mustang Shelby GT500 and mid-engine Corvette will both use the aforementioned gearbox, albeit slightly modified for each vehicle.
Even if the C8 Corvette does indeed receive a dual-clutch transmission, this doesn’t mean that a manual is out of the question. WAn intriguing GM patent of a clutch-by-wire system that surfaced in September suggested that a stick shift was a possibility, so it could very well happen.