Yea I’d say WJCO is right about that. Quenching with water poses the risk of making metal brittle because it cools too fast, but it’s not significant enough to really matter in this situation if you take your time and skip around as suggested.
In the structural world for example, water quenching is illegal. Cooling with air is always ideal, but I digress.
I recently pressed out the inners of my Prosteers. It’s not hard to do, but you really have to have the thin walled 1” socket to press the heim back into the housing. I tried forcing it in with 1 1/16” socket and jacked up the machined surface inside the housing. Definitely read the instructions from dynatrac about where to set the heim on the shaft if you plan on rebuilding.
The design is pretty simple and solid. Heim pressed on shank pressed in housing pressed in knuckle.
but I digress.