The steering on my truck seems stiffer than I think it should be. Especially compared to the half ton 4x4 that it was before the conversion. I think the pump is not putting out enough pressure. I've tried revving the motor to see if it helps and it makes no difference. All the joints in the steering are new and greased, so its either an internal leak in the box or a weak pump. Or the steering just sucks on a diesel. It has probably a third of the power my gas truck had. I plan on buying a power steering tester, basically a hose and guage to test the pressure, before ripping everthing apart, but want to know if ya'll have an advice and how the rest of your trucks act before I do anything. Thanks, Alex