I made my own conversion for my 52 1 ton, and used the original column.
Check it out on the link below, under the axle upgrade folder.
I would say you could come by and look at my truck, but I drove it up to WV where I work last week..
e-mail me if you have any questions

•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-