Both of mine look just like the Regular MT but the one is just shorter and neither have the sheetmetal cover over the brushes, just a solid metal case.
Bill

Thanks for that info-
I cleaned up the short one and found a part number on it, it is: S114-160B with 609 on the line below.
The long one doesn't look like it should be a reduction unit from the outside (it is round, not obllong) but I will pull it apart and see.
Bill

I have made a kit to put a Datsun 1200,210 or B210 transmission in an Austin Healy Sprite or MG Midget but I have a question that you Datsun folks can probably answer: I have a couple of starter motors (Datsun) but one is 6 1/2" long from the flange to the back end and the other is about 7 1/2" long. The short one works in my conversion but the long one hits the oil filter and won't work. The parts stores just list the long one as a replacement (they both will fit the "A" block Datsun). Does anyone know how to buy the short one?
Bill