Powersteering

I don't think a good gearbox should have much friction. Without hydraulic pressure, the steering wheel feels heavier than in a manual steering car, but most of that is due to the higher gear ratio. Rick Ehrenberg wrote an article in Mopar Action magazine about changing the pressure regulator (spring-loaded relief valve) in a Saginaw pump. He was lowering pressure so the steering had more feel (harder). I don't recall if similar is allowed easily in a TRW pump. Might be able to add a shim behind the spring, or swap in a stronger spring to raise pressure.