Re: Samurai King Pin Bearings
The symptoms will be excessive wheel shimmy (can be related to other things too), difficult-erratic steering followed by wierd noises coming from the front end (again, sometimes other factors are at work).
The top bearing usually needs replacement due to the fact the gravity pulls the grease downward and nobody ever repacks the kingpin bearings. I've seen some that were so badly rusted they were almost indistinguishable as a bearing. If you've never greased them, you'll probably need to replace them. You can possibly get away with just replacing the top two and just repacking the bottom bearings. However, after 13 years of no service, both the top and bottom of mine showed excessive wear and needed to be replaced. I plan on repacking mine ever two years unless I encounter a deep water crossing-that will require an imediate tear-down & repack.