Seems to me that thrust arm bush is another BMW design failure. Why should the rubber be in shear from the up/down motion of the front suspension. Rubber doesn't tolerate that load well. Well advised to tighten bolt with full chasis load. Clever diversion.

Isn't the thrust there primarily to absorb braking loads? At least is is properly named, or renamed. There are springs and shocks to absorb and control the up/down loads.

Why can't we have a urethane or whatever bush with a zerk to solve the shredded bush problem? Do I recall that someone was selling same for e30?

On the other hand, maybe the old adage applies. If a masochist desires punishment, only a sadist would say no. BMW loyalists can continue the BMW has no warts, see no evil approach but I get d tired of perpetuating their apparent design failures.