I have a IH300 U with two-point fasthitch. Have a chance to pick up a single bottom plow with single- point fast hitch they said was made for a Cub. Will it work on my tractor or why not? Wish I could send a picture but my Marketplace account disappeared. It's a regular fast hitch connector. I always thought the Cub plow had a long tongue.

The 300 plows wewe all 2 point as far as I can determine. SO you could remove one bottom and make a single point. You could also purchase the cub plow and use it modestly. You are not trying to make perfect furrows. I would do it if it was a modest price. Jim

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Jim, the Cub Fast Hitch uses the "large" prongs same as the 300. No spacer is needed.

The only tractors that used the small prongs are the Super C, 200, and 230. By the time of the 240, IH had realized that they never should have bothered with the small prongs for essentially one model of tractor, and went to large prongs on all tractors.

Was there a two prong fast hitch single bottom plow ever made.

Sure was. It was called a C-10 and made with small point fast hitch prongs to fit the Super C, 200, and 230 tractors. There were way fewer made than its C-20 two bottom brother and seem to be priced accordingly these days if you can find one.

So the model of the Farmall large single prong one bottom plow is a F-194.

What is the model of the Farmall C smaller single prong one bottom plow.

I can always measure the prong to tell the difference.

I have not seen a single prong fast hitch for the Farmall C, maybe there wasn't one?

cool. Jim

The Cub single-point Fast Hitch had a pair of guides above the socket that a protrusion on the implement fit between. This is what stabilized the implement from rotating since the prong itself wouldn't be strong enough to resist this twisting. The Cub implements had the same prong size as the smaller 2-point hitches like the Super C used. Even if you did rig up a way to make it work it would be a seriously undersized plow for the tractor. The Cub that the plow was designed for isn't heavy and powerful enough to cause any damage - the tractor would just stall or spin out if the plow caught on something. Put the same plow on a tractor with three times the power and weight and the plow may not be strong enough to resist being damaged.

Ok I just watched a youtube video and I see what you mean by the guides to keep it from rotating.
Thanks for the helpful explanation.

The use will be just to drag a line from the road ditch into the field to let water drain. No heavy plowing. So you are saying the prong will snap into place on one side of my fast hitch receiver. It won't swing side to side but it may want to twist.

The prong on the plow is 1/2 inch shorter (vertical dimension) than the socket on the tractor. Using a spacer under the prong will work. If you can buy the plow cheap, cool, if borrowing it I would not. I think your intent is OK to use it as a ditcher, Multiple modest passes would keep it from being ruined. If it will be yours, weld up a flat plate that can bolt to your 2pt FH drawbar. Shorten the plow so it is positioned as needed to lift it out of the ground about 2 feet when it is up. Jim