It saw the introduction of models like the pioneering Pontiac GTO in 1964, the 1967 Chevrolet ... performance 4-speed manual from General Motors, which is the rarest muscle car transmission ...

Previously manual-only, the ZL1 1LE automatic is 0.5 seconds faster ... of a manual transmission — concession to speed over enjoyment. To deal with the speedy shifts, Chevy has specially tuned ...

and 10-speed transmissions for you. They also offer to repair them. However, a common repair involves flushing the transmission, and experienced Chevrolet drivers warn against this process.