Did mine a few years ago...
Walked into NAPA here in Calgary and told them I needed new king pins for my 49 3/4t. The guy at the desk checked the computer and a couple books, walked to the back and came back with a dusty box with all the parts I needed.
Surprised me that they had them on hand, but made me a happy camper.


Current fleet (subject to change w/o notice)
\'49 GMC 3/4-Ton , 60 Austin Healey Frog-eye Sprite (some assembly required), 2011 Dodge Avenger, 2015 Jeep Cherokee. No, they don't all run.
My other ride is a (B737)no, (B767)no, A320.... Update... was Embraer E190, now Boeing B787.

Knowledge is a wonderful thing, but ignorance means you don't know you can't do something.