Baby Blue is a 2006 330xi, 180k miles...but this is a more generic question. I've just replaced my right front axle because of a ton of play at the inner joint. The left front was rock solid. Question: How and what type of play is "normal" for the rear axles and how would I know what is excessive? If I grab the axle and am able to move it front/back or up/down with "some" clunk, that seems bad. Longitudinal travel? Trying to understand what my hands are telling me. It seems as if the proper rear axle would be as rock solid as my left front. Thanks, folks!