Try Arrow Engine & Machine. Ask for Frank.423-634-0365

I've never actually worked on king pins, so I'm a little in the dark about what the proper reamer looks like or how it works, but I'll just throw this out there . . .

I have an adjustable reamer I bought to use on my antique Maytag crank bushings.  One of the guys that sells Maytag bushings sells the same reamer for $59, but I found it on eBay for something like $12 including shipping.  It's made in China (of course) but it looks and feels like a good quality reamer and they had had them in a variety of sizes.  Maytag crank bushings are supposed to be 0.875" I.D. (7/8")  Pressing them in the crank housing collapses them slightly, so they need to be reamed.  With the adjustable reamer, you can adjust it down from 0.875" to make up for a little wear on the crankshaft if needed.  The reamer I bought is adjustable from 0.84375 (27/32") to 0.9375 (15/16")

It would seem to me that the proper size adjustable reamer like the one I have should do the trick for kingpin bushings . . . shouldn't it?

Below is the eBay store where I got mine last year.  I think it was around $12 . . . . now it's $112!  It has the same part # as mine.  The size above it is over $200 . . . but all the sizes below it are $10 or less.         Anyway, here it is:  http://stores.ebay.com/Discount-Machine-Shop/Reamer-Counterbore-Countersink-/_i.html?_fsub=1236308016&_sid=103347546&_trksid=p4634.c0.m322

I've never actually worked on king pins, so I'm a little in the dark about what the proper reamer looks like or how it works

I'll get mine out and get some photos, it isn't a normal reamer. it has a step down area on it. You just gotta see it.

Cool, Thanks Tony. I will try to hook up with you this next week. I have gotten  no where with multiple  machine shops, Arrow and Roberts where extremely helpful and others I won't mention wouldn't even look at them  while standing at there desk.  That's how it goes. No biggie. I was thinking that a sunnen rod hone for the wrist pins would be able to do this job. It was just a little smaller for the tooling at 18mm. I never realized how many machine shops there are in town. Thanks for all the help eveyone.