The Stovebolt Site Forums The Shop Area Driveline King pins

I used that kit a few years ago on my 50 1/2 ton. I don't remember it being that expensive.

The bushing has a groove on the entire O.D. for the grease.

I had a nice snug fit on the bushing, didn't need to press them in. It came with a shim kit but I didn't need any.
Try a fit up and check for excessive play.

http://www.stovebolt.com/techtips/kingpins.htm

good luck