Manual transmissions can be of several styles, including the well known A-833, the A833 with Overdrive, the AX15 Dakota 5-speed, the New Venture series (NV1500 and NV3550) and also the Getrag 238 6-speed that was used in the 2005-2008 Dakota and 1500Ram pickups.

This is a news release from Chrysler:    Joining Chrysler’s 6-speed manual family is the Getrag 238, featured as standard equipment on the all-new 2005 Dodge Dakota and 2005 Dodge Ram 1500. Replacing the NV3500 5-speed manual, this 6-speed offers smoother shifting with triple-cone synchronizers on the First and Second gears, and double cones on Third and Fourth. Noise, vibration and harshness are minimized with hard-finish gears. The shift rails are supported by ball bearings and Teflon bushings to provide precise shift feel. Torque capacity and efficiency are also optimized, says Chrysler, through the use of an intermediate plate, speed gears supported by needle bearings, and clean-sealed ball bearings on shafts. A 2-piece, die-cast aluminum housing reduces weight while still providing the required stiffness.

The A-833 was available in several tailshaft configuration based on the body style, as well as certain design changes based on model year.
This is a 1964-65 version with the Ball&Trunion style u-joint:

This is a 1966 and later version with the typical slip-yoke. Note that this transmission has the 18 count spline input shaft from a 440 or 426Hemi application:

The A-833 with Overdrive:

The Aisin-Warner AX15 5-speed, driver side:
The external slave cylinder mounts to the hump that is visible just behind the starter pocket.

and the passenger side:

The gear ratios for the AX15 are: first- 3.83; second- 2.33; third- 1.44; fourth- 1.0; fifth- 0.79

Worried about the ‘electric’ connection where the AX15 speedometer gear is located? The same gear package is used in the Torqueflite trans:

The Getrag 238 6-speed:

Gear ratios for the 238 are: first- 4.23; second- 2.53; third- 1.67; fourth- 1.23; fifth- 1.0; sixth- 0.79