Transmissions and transaxles changes, without the swap of a matching engine, are not legal in California. Your can perform the swap of the transmission alone, but your vehicle will not pass a smog check and will not be allowed to legal be driven on public roadways. A transmission swap such as this is usually done on vehicles where the owners intend to convert the vehicle into a performance off-highway vehicle, and not one which will be used as a daily driver.
Transmissions and/or transaxles can only be changed along with their matching engine. The total engine transmission package must conform to California's engine change requirements.
