1985 GMC K-15: Shortbed Cummins Conversion. 4BT-Powered '85 GMC K-15. David Kennedy Photographer Jason Thompson Writer Feb 01, 2011. See All 12 Photos.

Powering the most basic Ram 2500 and 3500 pickups is still the 6.4-liter gasoline-burning Hemi V8, which drops 5 hp, now delivering 405 hp and 429 lb-ft of torque, pushed through an eight-speed ZF ...

Read about the new 2006 LBZ Duramax GMC Sierra 3500 featuring an Allison 1000 ... when Dodge began putting the Cummins 5.9L in its 3/4 ... Getting into the '06 GMC Sierra we really ...