From what I've read online, the C6 Vettes have them. In the regular and Z06 they are designated the MM6 and in the ZR1 is a MZ6. But the MM6 is only able to hold 500ish fl lbs of torque with the Mz6 at 256 ft lbs. But
all you owners of the rides on the members section. Someday I'll hopefully do a build of my own.