Am I able to put 195-70R-14 tires on my Plymouth Voyager when the manual recommends 205-75R-14?

This is the first time I have ever heard of someone wanting to put SMALLER tires on their vehicle. If you know the break up of tires, the 205 is how wide, 75 the thickness of the rubber from outside to rim, and the 14 is the size of hubcab or rim. I believe it would fit, but think about what you are doing...you are putting a smaller tire on your vehicle which supports less weight, and does not have as big as a tire base (the total area of all the tires on the ground). The engineers that designed your vehicle specified those tires for a reason. I would highly recommend putting ONLY the recommended size tires on your vehicle.