I'm fine with it, I'm learning alot from the chit chat! Keep it going! It only helps the thread. The rear PTO is such a rare thing and any help with its use is greatly appreciated. I'd love to know what Implements were made by IH to run of of it.

For the 540 PTO: None
For the 2K PTO: A tiller, and a bush hog

What the "crap" Jonathan, I said the same thing the other day (only using different words) and you jumped my a$$ about it. Make up your mind and stop being such a jackass, you can't have it both ways!

I think the key was "IH" made.
I'm sure mine will get used with belt drive stuff, I have some things I run off my IHC engines that would be cool to run off of it, like a old water pump.

now to add another question. The manual 1x2-3 pg.2-3 states the REAR PTO speed is the same as engine speed. So who is right is it 540 or direct drive?

Just about any PTO on any tractor is throttle dependent, it might be 540 at full throttle but will turn slower as you decrease the throttle.

How I read the manual its direct drive, ie if the engine is at 3600rpms so is the pto

I have no experience with the rear PTO on a cub but it would be pretty worthless if it ran at engine speed, it would almost have to have some kind of gear reduction so that the PTO could have the power to run implements. Take a tiller for example, there's no way a 12hp engine has enough power to run a tiller at 3600rpm in the ground, as soon as it touched the ground it would stall out or brake something.

I'm not sure about the RPM but I know it's not full engine RPM because it runs off the main shaft in the trans and that turns at a reduced speed because it is driven by the reduction gear.

Edit: Did a little research, the input gear according to Mid West Super Cub has 12 teeth and the reduction gear according to Parts Tree has 84 teeth so 84 divided by 12 is 7. Engine RPM of 3600 divided by 7 would give you 514 RPM's at the rear PTO.

According to the 71, 102, 122, 123 Operators manual that I have (1 082 592 R3 8-4-67-14B.)

Power take-off shaft governed speed........... 515 r.p.m.

I have no idea how we get from 540 to 515 but Sams math looks to right on target.