I just had the left front wheel bearing on my 89 k5 suddenly grenade itself and take out the warn locking hub with it. What a bitch getting the wheel off and then the spindle was bunged, had to sand it to smooth it and get the new bearings on. So after $200 in parts and 5 hours on saturday both wheels have been done. New bearnigs/races, new brake pads, new warn hubs and I changed the rear u-joints cuz they were getting worn. My biggest question is how the hell did that bearing let go so quickly without any advance warning ie: squeaking/grinding?