From what I know, a "press fit" would have the od of the bushing at .001" smaller then what the id of the knuckle is.
.002 MIGHT be too loose. 0, would be too tight.
At some point the steel sleeve of the bushing would collapse like an accordion if the fit was too tight.
Put a flat plate over the lip of the steel bushing that covers the entire ring in order to press it in uniformly.
A "regular" hydraulic press should be fine. You might even be able to do it in a 4" or bigger bench vice?
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