Any one good with steering valves ??

Hello, Does any one know if there is a steering valve made that does what a orbital ( steering valve) will do but has a shaft all the way through it like a torque generator ?? I'm trying to control the front mechanical rack and pinon with just my arm input , but at the same time , I would be transferring hydraulic input to a double ended balanced ram in the rear ? Please be nice I'm new. Thanks
 
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