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  1. Mopar / Stellantis News
    The old four-speed won’t make it past the end of the year, according to a reliable Allpar source.   The six-speed , which is made on a different line and with some different casting machines, will live on, reportedly making it past the end of the year at least. Four-speed automatics are...
  2. Mopar / Stellantis News
    Back in 1989, Chrysler launched its first four-speed automatic—which, unlike any competitors, was a revolution in transmission design. It dropped the old bands and hydraulic controls; instead, while still using hydraulics, the “ UltraDrive ” was controlled by a computer which activated...
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