This is what you need for Standard Tread tractors like the OS6. This is a 650 system. Any W400 thru 660 system could be modified to work. The same goes for other makes that use that type of system
Just yesterday I received a backup system (cylinder, linkages, bracket) for my 660. The drag link systems are very rare. It was only the second IH system I have seen on eBay in about 10 years.
Your tractor was not offered with PS. A system off a W400-W450 will be close if not a direct exchange on a OS6.
I think a torque generator would work but it will require some work (machining and welding) and the destruction of the stock IH shaft and column.
I installed a four port hydrostatic steering "hand pump" on a W400 last year because the drag link was in my way for installing a homemade implement. That was a considerable amount of work and a fair amount of money. It also requires a cylinder on the front axle.
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Today's Featured Article - Timing Your Magneto Ignition Tractor - by Chris Pratt. If you have done major engine work or restored your tractor, chances are you removed the magneto and spark plug wires and eventually reached the point where you had to put it all back together and make it run. On our first cosmetic restoration, not having a manual, we carefully marked the wires, taped the magneto in the position it came off, and were careful not to turn the engine over while we had these components off. We thought we could get by with this since the engine ran perfectly and would not need any internal work. After the cleanup and painting was done, we began reassembly and finally came to t
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