#9148, "RE: 4g63 Crankwalk Symptoms" In response to In response to 8
CW is bearing failure due to a design flaw from the factory. Generally, replcing the faulty parts still leaves the possibility of CW, but again, it's an overblown occurence. It will certainly be of great help, but it's not a sure fire guarantee.
Don't get too worried about it. Just take the precautions available to you and if for some reason it happens, be prepared for it ($ for bottom end rebuild).