JR405E Automatic Transmission Archives - Transmission Digest
JR405E RWD 4-Speed: The Subaru FWD twin

With the unrelenting proliferation of transmission models and today’s focus on extreme gears, it’s refreshing to see a design that crosses over from RWD to FWD applications. Having one basic architecture certainly makes diagnosis and rebuilding procedures much easier.

Such is the case with the JR405E. The transmission is made by Jatco, and although the company is currently the king of CVTs, it also makes a variety of step-type units. Jatco makes transmissions for the global market as well, meaning that shops in the U.S. would never get a shot at repairing.