As people above have said the two on the left are the part DC980KA drill motors they did have a tendency to overheat and the leads on the back of the motor would heat up and unsoder themselves. If you were not carefull the brushes on the motor are exposed and extremly fragile.
THe lower motor is a 2000 - 2002 transmission 3/8 dewalt it has been retrofitted to stop the clutch plates from slipping and it also has Dr. Joe Johnson's Shaft in it.
Here are the links on how to retrofit a new one as well as the specs on them both.
http://www.chiefdelphi.com/media/papers/1558
http://www.chiefdelphi.com/media/papers/1336
http://www.chiefdelphi.com/media/papers/1313
MY 2cents run away!! the cim's are more powerfull and more reliable. if they are to heavy consider a NBD transmission with the fisher price motor.
http://www.chiefdelphi.com/media/papers/1592
Good Luck