The 845RE is an 8 speed transmission that was originally developed. In 2012 it introduced in the Charger SXT and Chrysler 300 coupled with the Pentastar V6. ZF refers to this transmission as the 8HP45.
Chrysler is making its transmissions (and most of the parts for them) in its various Indiana plants, and ZF is building them in Greenville, South Carolina.
Differences between the 8HP45 and 845RE include the clutches (845RE has extra friction plates) and, for some vehicles, a higher capacity oil pan. Many internal parts do not interchange.
The 845RE is built for both rear wheel drive and all wheel drive models.