What types of transmissions are available with the various trucks? I know the 04/05 GM trucks had a 5 speed Allison with the Duramax and a six speed in 06/07 but what about the Vortec? Just a four speed auto? I also know Dodge had a six speed manual transmission available but not sure what years or what the automatic alternative was. Four speed or five with the Hemi? Some of the listings I am finding online just say automatic in the transmission column and nothing specific as to the type of automatic. Thanks again for all the advice so far.
