Real idiots dont reed thier liitle red books in the glove box... For 2006 Ram 2500 G-56 transmisson and the getrag man versions for the 4.7 it clearly states...mopar automatic transmisson fluid....

As for drving a g56 behind the hemi, its not a nasscar racer as booth CTD and hemi verisons are geared lower than you want for racing, but for towing and mini mountain moving at highway speeds...The G-56 is the cats purrr...

Gears in a transmisson accomplish the same tasks so its not abnormal to use automatic transmssion fluid, thiers no value body, no tourque converter in the g-56 and no coumputer crap senors.

Transmisson fluid and power steering fluid are pretty much the same deal, but Ford, GM and dodge have thier own fluids..

 

thanks for the info im changing it tonight