Thought I'd show how I take apart the MoPar outer door handles for repairs like changing square shafts, removal of escutcheons for plating ect.
To swap out the square handle shafts say if the wrong length-2 or 4 door, I use a vise and a 12" cresent wrench for leverage and wedge the pot metal handle right off the shaft. I use a protective washer with a same size square hole to fit the shaft and prevent damage to the soft pot metal handle. Then to install a new shaft tap it right into the handle while just holding the pot metal handle firmly. Sometimes I use JB weld if necessary.
To remove the outer door handle eschutcheons use good gripping (like new)vise grips and grab the tubular crimped (crimped on 2 sides) retaining collar firmly and rotate/twist the retainer 90 degree's back and forth while pulling it straight off. It will come off with out damage if the vise grips grab into the collar with sharp jaws- don't over tighten the vise grips! Underneath this retainer is a wavy washer to keep tension on the outer door handle/escutcheon so it doesn't rattle-don't lose it.
To reassemble this retainer on the Door handle I use a piece of tube 2" long and 5/8" ID that just fits over the retaining collar and pushes up against the flared part of the retaining collar. I like to use "JB Weld" adhesive on the collar then align up the 2 depressed dimples in the collar with the depressions in the handle, Tap the retaining collar down with the 2" long installing tube tool as far as easily possible. Then the retaining collar still has to be forced down just enough more to put constant firm presure against the wavy washer to keep the door handle/escutcheon tight and rattle free in service. To do this and keep strong holding down pressure against this retainer while the JB Weld sets up, I wedge the 2" tube tool tight by forcing the tapered cresent wrench jaws between the pressing tube and vise grips set at the proper spot on the square handle shaft- the handle shaft must be tight in the handle. I also sometimes attempt to re-depress the 2 indentations but found that JB Weld is the best way to keep the retainer in place and tight. Let it set overnight.
Always a perfect factory tight rattle free door handle!
Bob