Power Track used to offer a rear hitch on one of their models. Can't remember which one. I think is was just a few hydraulic cylinders and a quick attach plate. Someone on TBN has one, as I recall. I think it was on a unit with a backhoe on the back.
At first glance, they look simple. However, you start looking into how a 3pt hitch works and you find things like geometry getting in the way! :laughing:
As you raise and lower an implement, the angle of the implement changes unless you make a parallelagram deally thing. Our PT FEL arms don't have that and that is why the angle of the bucket changes as we lift and lower the arms. REAL FELs have it to keep the bucket at the same angle through the entire travel of the lift arms.
Then there is draft control, rockshafts, adjustable length arms for manual side-to-side leveling, adjustable top link, etc...
Or you could go top-n-tilt and make the top link and one side link hydraulic for power angle and tilt from the seat. Do a search on TBN for top and tilt 3 pt and you should find a LOT of good reading on that subject. :thumbsup:
You may also want to consider some type of depth stop so you can repeat implement depth if you raise and lower the implement often. REAL 3pt hitches have that as well.
Now, as for me, I will do everything within my power to aviod the use of a 3pt hitch. That is why I bought the PT. I do realize the limitations of the PT design, though, in that it is not meant for tasks like plowing fields, stump pulling, hay bailing or crop harvesting. If those were my chores, I'd get a "conventional" tractor.
I think if you added a limited use 3pt hitch to a larger PT, you might have something in that you could use a box blade or tiller without having to look backwards while you drive forwards. I don't think it would be a great addition to the smaller PTs though, due to the limited pulling power.
But that's about it. You'll end up with some ditch-witch looking Swiss army knife contraption.... which could be quite useful! :laughing: