A NAPA machine shop can usually do it, they often hone the bushings on the same machine they use to hone connecting rod bushings. I prefer honed instead of reamed king pin bushings.

Either way, reamed or honed they should be just the right fit, and the two holes must line up exactly. It's a bad idea to try to ream them separately without considering alignment between the two bushings.

Grigg

•1951 GMC 250 in the Project Journals
•1948 Chevrolet 6400 - Detroit Diesel 4-53T - Roadranger 10 speed overdrive - 4 wheel disc brakes
•1952 Chevrolet 3800 pickup
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"First, get a clear notion of what you desire to accomplish, and then in all probability you will succeed in doing it..." -Henry Maudslay-