"P" is for power take off, same size as a MD 3060 as the power take off runs off the converter
Thanks, Clifford. Is the power take off on these transmissions useful for running a "house battery" alternator? And the power-take-off-definition is probably about right since the transmission is out of a fire truck and I'm guessing that that PTO was originally used for water pumps. I found a few points of data and was amazed at the compactness of the 3060 in comparison to the MT643; although the 3060 had much higher capacity power specs, it's actually a bit smaller in external dimensions than the MT transmissions (product line versus product line).