That is press fit just under the yoke and it is just what you think. They make a rubber ring for some of them, but the floating axle needs a loose fit.
I don't know if you have room, but they have a plastic two piece one that bolts on for YJ or TJ fronts.
When you go for the heater core replacement, I 'highly' recommend you put a GM blower motor in. It puts out more on low than the stock one on high. I could drive last winter with my coat off, let alone no gloves or boots! The windows defrost! I am in Canada....
Here is a link on the blower upgrade. If you have a choice of two motors, the cheaper one with the shorter shaft is the right one.
TrailMarker wrote: