I have a set in my truck, even traded my old 5.14, and other guy was happy to cover shipping both ways.
My swap/trade is perhaps not common but not uncommon either, I've heard of several other similar deals plus or minus shipping cost.

Just keep looking and asking around and you can probably turn up a center section for not much.

•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-