rear bearing replacement - week 3, getting a broken bearing out of the trailing arm Options

[FB914]

I'm into the 3rd week (part time of course) of a rear bearing replacement project that has been a problem. I've been following the Pelican Parts recomended process from there tech article and that has been helpful. The problem is that the bearing broke apart as I tried to drive it out of the trailing arm. Only the outer ring or outer race of the old bearing is left and it does not want to budge out of the trailing arm. The pelican article says to use brute force and knock it out but I'm afraid of damaging the trailing arm. Anybody ever had this issue and if so, how did you get the bearing out? Thanks as always for your helpul replies.

Frank B