Here's the family portrait Dave, along with a few other integral gear motors.
The 703 was strictly a choo-choo motor, but adapted by some early slot/rail racers once they had cut off the long shafts.
Then in 1963, Charlie Pittman introduced the company's first two "dedicated" slot car motors, the DC704, with integrated gears and threaded axles, and the DC196 for inline, mainly 1/32 cars. The late Al Schwartz was involved in this whole process and has told the story a few times, probably including on this forum. Pittman offered a 704A too, then the 705 with the axle outside the magnet, followed by the 706 with moveable endplates so you position the axle either way. The 196 also evolved, to the 196A then the ultimate 196B - but by that time the cans had taken over, leaving us lots of unsold stock!
Pretty much the same story at Ram, as you say, but they went out with a bang, introducing the XL-500, fastest version of this kind of motor, in mid to late 66 - but way too late!
Don