Here's the solution I like so far, although it's not easy.
I'm continually searching for an easy way and haven't found one yet, and even if there is an "easy" way it may not be any better that what I've done so far.

http://www.stovebolt.com/techtips/bigbolts/p30swap/

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-