Get a starter for a 2005-2008 Dodge Ram with a 5.7 and a MANUAL transmission, the automatic starter for this application is totally different and will not fit.

The manual transmission starter is a coaxial (planetary) gear reduction design, not offset like the Chrysler and Nippondenso gear reduction starters (the difference is shown below). That's why the motor housing is directly in line with the starter drive axis, making the whole starter more "compact".

Be sure and get a genuine starter with a Chrysler, Denso, or Nippondenso nameplate on it.