King pins are relatively easy to get to with the body on so there's little incentive to do it now just because you have the body off. As others have said clean and inspect the axle/king pin area. I literally spent hours scraping & chipping my 38. If you actually need to replace do so. Replacing just because you can or it's perceived to be easier now & not because you need to is wasting money.
Save a life, adopt a senior shelter pet.
The three main causes of blindness: Cataracts, Politics, Religion.
Name your dog Naked so you can walk Naked in the park.
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