Don’t understand how pitman and idler arm work at spec torque settings?

pishta said

your not tightening a nut against a bearing, the bearing is on the sleeve. you should just be tightening against a sleeve and it should torque pretty fast once snug. The taper only will go so deep on the receiver and then will tighten up so bith have no bolt torque on the bearing
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^^THIS is true "so far" but this might be right where the trouble lies. Some aftermarket designs depend on washers for spacers, and if they are missing, sequenced incorrectly, etc, OR JUST A CHEAP POOR DESIGN it will be possible to over-tighten the bolt and bind up the pivot point. I have one of these, don't remember who made it. There is no literature, directions. It appears to me that it depends on a lock nut to maintain the proper clearance for the pivot. REALLY poor design and NOT AT ALL like the factory design

On a side note, replacement parts from so called brand name suppliers are not what they used to be

WE NEED PHOTOS. CLEAR PHOTOS. and we need YEAR MAKE AND MODEL what it is you are working on.